diff --git a/src/app/openaireLibrary b/src/app/openaireLibrary
index c20dd4f..cd782d4 160000
--- a/src/app/openaireLibrary
+++ b/src/app/openaireLibrary
@@ -1 +1 @@
-Subproject commit c20dd4fa23d743671d733788957784aa72166720
+Subproject commit cd782d4a68a67dcba4d5d1bbce7ee737ad1f3871
diff --git a/src/app/pages/content-providers/add-content-providers.component.html b/src/app/pages/content-providers/add-content-providers.component.html
index a9f23a9..c3461ff 100644
--- a/src/app/pages/content-providers/add-content-providers.component.html
+++ b/src/app/pages/content-providers/add-content-providers.component.html
@@ -68,10 +68,10 @@
         </div>
       </div>
       <div class="uk-margin-small-top">
-        <paging-no-load  [currentPage]="openaireSearchUtils.page"
-                         [totalResults]="openaireSearchUtils.totalResults" [size]="resultsPerPage"
-                         (pageChange)="goTo($event)" customClasses="uk-flex-right@m uk-flex-center">
-        </paging-no-load>
+        <no-load-paging [type]="openaireContentProviders.length === 1?openAIREEntities.DATASOURCE:openAIREEntities.DATASOURCES"
+                        [page]="openaireSearchUtils.page" [pageSize]="resultsPerPage" (pageChange)="goTo($event.value)"
+                        [totalResults]="openaireSearchUtils.totalResults">
+        </no-load-paging>
       </div>
     </ng-container>
   </div>
diff --git a/src/app/pages/content-providers/criteria/criteria.component.html b/src/app/pages/content-providers/criteria/criteria.component.html
index 21e26fd..6f4fbc2 100644
--- a/src/app/pages/content-providers/criteria/criteria.component.html
+++ b/src/app/pages/content-providers/criteria/criteria.component.html
@@ -3,7 +3,7 @@
     <loading></loading>
   </div>
   <ng-container *ngIf="!loading">
-    <div class="criteria uk-overflow-auto uk-position-relative" [ngStyle]="{'height.px': criteriaHeight?criteriaHeight:null}">
+    <div class="criteria  uk-position-relative uk-margin-large-bottom" >
       <div *ngIf="criteria.length == 0" class="uk-text-center uk-position-center">
         <ng-content select="[no-criteria]"></ng-content>
       </div>
diff --git a/src/app/pages/customization/customization.component.html b/src/app/pages/customization/customization.component.html
index 856fbf5..65dfa0f 100644
--- a/src/app/pages/customization/customization.component.html
+++ b/src/app/pages/customization/customization.component.html
@@ -57,8 +57,8 @@
         <div *ngIf="menuSelected.id == 'backgrounds'" class=" uk-padding-small ">
           <div class="customizationMenuItems uk-margin-small">
             <div class="uk-h4">Backgrounds</div>
-            <div>Note: Custom background style settings will override any identity settings that effect the
-              visualisation of a background.
+            <div>Note: Custom background style settings will override any settings that affect the
+              visualisation of backgrounds.
             </div>
 
             <div class="uk-margin-large-top uk-margin-small-bottom uk-h5"> Quick look
@@ -78,8 +78,8 @@
         <div *ngIf="menuSelected.id == 'buttons'" class=" uk-padding-small ">
           <div class="customizationMenuItems uk-margin-small">
             <div class="uk-h4">Buttons</div>
-            <div>Note: Custom background style settings will override any identity settings that effect the
-              visualisation of a background.
+            <div>Note: Custom buttons style settings will override any settings that affect the
+              visualisation of buttons.
             </div>
 
             <div class="uk-margin-large-top uk-margin-small-bottom uk-h5"> Quick look
@@ -102,7 +102,7 @@
           <div class=" customizationMenuItems uk-margin-small">
 
             <div class="uk-h4">Identity</div>
-            <div>Note: Custom identity style settings will effect the visualisation of the whole gateway. That
+            <div>Note: Custom identity style settings will affect the visualisation of the whole gateway. That
               includes <span class="uk-text-bold">buttons, links, tabs, backgrounds, etc.</span></div>
 
           </div>
diff --git a/src/app/pages/projects/remove-projects.component.ts b/src/app/pages/projects/remove-projects.component.ts
index 3d5c37b..eff19ef 100644
--- a/src/app/pages/projects/remove-projects.component.ts
+++ b/src/app/pages/projects/remove-projects.component.ts
@@ -284,7 +284,7 @@ export class RemoveProjectsComponent implements OnInit {
   }
 
   public selectAll(){
-    if(this.selectedIndexes.length < this.communitySearchUtils.totalResults) {
+    if(this.selectedIndexes.length < this.previewCommunityProjects.length) {
       this.selectedIndexes = Array.from(Array(this.previewCommunityProjects.length).keys());
     }else{
       this.selectedIndexes = [];
diff --git a/src/app/pages/stats/stats.component.ts b/src/app/pages/stats/stats.component.ts
index 6d81836..10d46e1 100644
--- a/src/app/pages/stats/stats.component.ts
+++ b/src/app/pages/stats/stats.component.ts
@@ -1,5 +1,5 @@
 import {Component, OnInit, ElementRef} from '@angular/core';
-import {HelpContentService} from '../../services/help-content.service';
+import {HelpContentService} from '../../openaireLibrary/services/help-content.service';
 import {ActivatedRoute, Router} from '@angular/router';
 import {EnvProperties} from '../../openaireLibrary/utils/properties/env-properties';
 import { Portal } from '../../domain/portal';
@@ -112,7 +112,7 @@ export class StatsComponent implements OnInit {
       if(!Session.isLoggedIn()){
         this._router.navigate(['/user-info'], { queryParams: { "errorCode": LoginErrorCodes.NOT_VALID, "redirectUrl":  this._router.url} });
       } else {
-        this.contentService.getCommunityAdminStatisticsChoices(this.properties.adminToolsAPIURL, this.communityId)
+        this.contentService.getCommunityAdminStatisticsChoices(this.communityId)
             .subscribe(
                 res => {
                     this.statisticsDisplay = res;
@@ -202,7 +202,6 @@ export class StatsComponent implements OnInit {
         this.showAllInMonitor = !this.showAllInMonitor;
 
         this.contentService.postCommunityAdminStatisticsChoices(
-            this.properties.adminToolsAPIURL,
             this.communityId,
             entity,
             'charts',
@@ -220,7 +219,6 @@ export class StatsComponent implements OnInit {
             () => {
 
                 this.contentService.postCommunityAdminStatisticsChoices(
-                    this.properties.adminToolsAPIURL,
                     this.communityId,
                     entity,
                     'charts',
@@ -238,7 +236,6 @@ export class StatsComponent implements OnInit {
                     () => {
 
                         this.contentService.postCommunityAdminStatisticsChoices(
-                            this.properties.adminToolsAPIURL,
                             this.communityId,
                             entity,
                             'charts',
@@ -321,7 +318,6 @@ export class StatsComponent implements OnInit {
 
         //this.loadingMessage = 'Saving changes';
         this.contentService.postCommunityAdminStatisticsChoices(
-            this.properties.adminToolsAPIURL,
             this.communityId,
             entity,
             'charts',
@@ -338,7 +334,6 @@ export class StatsComponent implements OnInit {
             () => {
 
                 this.contentService.postCommunityAdminStatisticsChoices(
-                    this.properties.adminToolsAPIURL,
                     this.communityId,
                     entity,
                     'charts',
@@ -355,7 +350,6 @@ export class StatsComponent implements OnInit {
                     () => {
 
                         this.contentService.postCommunityAdminStatisticsChoices(
-                            this.properties.adminToolsAPIURL,
                             this.communityId,
                             entity,
                             'charts',
@@ -388,7 +382,7 @@ export class StatsComponent implements OnInit {
     }
 
     toggleShowGraphAnalysisView() {
-      this.contentService.statisticsIsActiveToggle(this.properties.adminToolsAPIURL, this.statisticsDisplay._id).subscribe(status => {
+      this.contentService.statisticsIsActiveToggle(this.statisticsDisplay._id).subscribe(status => {
         this.statisticsDisplay.isActive = status;
       });
     }
@@ -400,7 +394,6 @@ export class StatsComponent implements OnInit {
         this.updateErrorMessage = "";
 
         this.contentService.postCommunityAdminStatisticsChoices(
-            this.properties.adminToolsAPIURL,
             this.communityId,
             entity,
             chartsOrNumbers,
@@ -423,7 +416,6 @@ export class StatsComponent implements OnInit {
         this.updateErrorMessage = "";
 
         this.contentService.postCommunityAdminStatisticsChoices(
-            this.properties.adminToolsAPIURL,
             this.communityId,
             entity,
             chartsOrNumbers,
diff --git a/src/app/pages/subjects/subjects-edit-form/subjects-edit-form.component.ts b/src/app/pages/subjects/subjects-edit-form/subjects-edit-form.component.ts
index aa852a0..b71aa27 100644
--- a/src/app/pages/subjects/subjects-edit-form/subjects-edit-form.component.ts
+++ b/src/app/pages/subjects/subjects-edit-form/subjects-edit-form.component.ts
@@ -295,34 +295,13 @@ export class SubjectsEditFormComponent implements OnInit {
     public saveAllSubjects() {
         let selectedSdg = this.sdgSelection.getSelectedSubjects().map(a => a.id);
         let selectedFos = this.fosSelection.getSelectedSubjects().map(a => a.id);
-        let requests = [
-            ...this.saveSubjects(this.community.subjects, this.displayedSubjects, 'subjects'),
-            ...this.saveSubjects(this.community.sdg, selectedSdg, 'sdg'),
-            ...this.saveSubjects(this.community.fos, selectedFos, 'fos')
-        ];
-        this.subscriptions.push(forkJoin(requests).subscribe(res => {
+        this.subscriptions.push(this._subjectsService.updateSubjects(this.communityId ,this.displayedSubjects, selectedFos, selectedSdg).subscribe(res => {
+            this.community.subjects = this.displayedSubjects;
+            this.community.fos = selectedFos;
+            this.community.sdg = selectedSdg
             this.afterUpdateActions(res, "updated");
-        }));
-    }
+        }))
 
-    public saveSubjects(subjects, displayedSubjects, type: string) {
-        if (this.communityId != null && this.communityId !== '') {
-            this.loading = true;
-            const subjectsToDeleteAr = this.getSubjectsExistOnlyInFirst(subjects, displayedSubjects);
-            const subjectsToAddAr = this.getSubjectsExistOnlyInFirst(displayedSubjects, subjects);
-            const subjectsToDelete = this.getNonEmptyItems(subjectsToDeleteAr);
-            const subjectsToAdd = this.getNonEmptyItems(subjectsToAddAr);
-            let requests = [];
-            if (subjectsToDelete.length > 0) {
-                requests.push(this._subjectsService.removeSubjects(
-                    this.properties.communityAPI + this.communityId + '/' + type, subjectsToDelete))
-            }
-            if (subjectsToAdd.length > 0) {
-                requests.push(this._subjectsService.addSubjects(
-                    this.properties.communityAPI + this.communityId + '/' + type, subjectsToAdd))
-            }
-            return requests;
-        }
     }
 
     handleUpdateError(message: string, error = null) {
@@ -334,15 +313,6 @@ export class SubjectsEditFormComponent implements OnInit {
     }
 
     afterUpdateActions(response, message: string) {
-        response.forEach(res => {
-            if (res.subjects) {
-                this.community.subjects = res.subjects;
-            } else if (res.sdg) {
-                this.community.sdg = res.sdg;
-            } else if (res.fos) {
-                this.community.fos = res.fos;
-            }
-        });
         this._communityService.updateSubjects(this.community.subjects, this.community.fos, this.community.sdg);
         this._clearCacheService.purgeBrowserCache("Subjects " + message, this.communityId);
         NotificationHandler.rise('Subjects successfully ' + message + '!')
diff --git a/src/app/pages/subjects/subjects.service.ts b/src/app/pages/subjects/subjects.service.ts
index 2950cb6..184f720 100644
--- a/src/app/pages/subjects/subjects.service.ts
+++ b/src/app/pages/subjects/subjects.service.ts
@@ -1,6 +1,7 @@
 import { Injectable } from '@angular/core';
 import {HttpClient, HttpHeaders} from "@angular/common/http";
 import {map} from "rxjs/operators";
+import {properties} from "../../../environments/environment";
 
 @Injectable()
 export class SubjectsService {
@@ -9,34 +10,10 @@ export class SubjectsService {
 
   }
 
-  addSubjects(url: string, subjects: any) {
+  updateSubjects(communityId: string, subjects: any, fos, sdgs) {
     let headers = new HttpHeaders({'Content-Type': 'application/json'});
-
-    const body = JSON.stringify(subjects);
-
-      return this.http.post(url, body, {headers: headers})
-                        // .do(request => console.log("Insert Response:"+request.status))
-                        //.map(res => res.json())
-                        .pipe(map(res => {
-                          res['method'] = 'post';
-                          return res;
-                        }));
+    const body = JSON.stringify({subjects: subjects, fos: fos, sdg: sdgs});
+    return this.http.post(properties.communityAPI + communityId , body, {headers: headers});
   }
 
-  removeSubjects(url: string, subjects: any) {
-      //const headers = new Headers({'Content-Type': 'application/json'});
-      let headers = new HttpHeaders({'Content-Type': 'application/json'});
-
-      const body = JSON.stringify(subjects);
-      //const options = new RequestOptions({headers: headers, body: body});
-
-      //return this.http.delete(url, options)
-      return this.http.request('delete', url, { body: body, headers: headers})
-                        // .do(request => console.log("Delete Response:"+request.status))
-                        //.map(res => res.json())
-                        .pipe(map(res => {
-                          res['method'] = 'delete';
-                          return res;
-                        }));
-  }
 }
diff --git a/src/app/pages/users/personal-info/personal-info.component.ts b/src/app/pages/users/personal-info/personal-info.component.ts
index 2b843f0..1e70ea0 100644
--- a/src/app/pages/users/personal-info/personal-info.component.ts
+++ b/src/app/pages/users/personal-info/personal-info.component.ts
@@ -11,7 +11,7 @@ import {EnvProperties} from "../../../openaireLibrary/utils/properties/env-prope
 import {properties} from "../../../../environments/environment";
 import {User} from "../../../openaireLibrary/login/utils/helper.class";
 import {Affiliation, Curator} from "../../../openaireLibrary/utils/entities/CuratorInfo";
-import {HelpContentService} from "../../../services/help-content.service";
+import {HelpContentService} from "../../../openaireLibrary/services/help-content.service";
 import {Page} from "../../../domain/page";
 import {CommunityService} from "../../../openaireLibrary/connect/community/community.service";
 import {StringUtils} from "../../../openaireLibrary/utils/string-utils.class";
@@ -223,7 +223,7 @@ export class PersonalInfoComponent implements OnInit, OnDestroy {
         if (this.user) {
           this.title.setTitle(community.shortTitle.toUpperCase() + " | Personal Info");
           this.loading = true;
-          this.subs.push(this.curatorService.getCurator(properties).subscribe(curator => {
+          this.subs.push(this.curatorService.getCurator().subscribe(curator => {
             this.initCurator(curator);
             this.reset();
             this.loading = false;
@@ -307,7 +307,7 @@ export class PersonalInfoComponent implements OnInit, OnDestroy {
   }
   
   saveCurator() {
-    this.curatorService.updateCurator(this.properties, this.curatorFb.value).subscribe((curator) => {
+    this.curatorService.updateCurator(this.curatorFb.value).subscribe((curator) => {
         if (curator) {
           this._clearCacheService.purgeBrowserCache("Curator added/ updated", this.community.communityId);
           UIkit.notification('Your data has been <b>saved successfully</b>', {
@@ -357,7 +357,7 @@ export class PersonalInfoComponent implements OnInit, OnDestroy {
   }
   
   private curatorsPageStatus() {
-    this.helpContentService.getCommunityPagesByRoute(this.community.communityId, '/curators', this.properties.adminToolsAPIURL).subscribe((page) => {
+    this.helpContentService.getCommunityPagesByRoute(this.community.communityId, '/curators').subscribe((page) => {
       this.curatorsPage = page;
     });
   }
@@ -480,7 +480,7 @@ export class PersonalInfoComponent implements OnInit, OnDestroy {
   }
   
   enableCurators() {
-    this.helpContentService.togglePages(this.community.communityId, [this.curatorsPage._id], true, this.properties.adminToolsAPIURL).subscribe(() => {
+    this.helpContentService.togglePages(this.community.communityId, [this.curatorsPage._id], true).subscribe(() => {
       this.curatorsPage.isEnabled = true;
       this._clearCacheService.purgeBrowserCache("Curators page enabled", this.community.communityId);
       UIkit.notification('Curators Page has been <b>enabled successfully</b>', {
diff --git a/src/app/utils/validateEnabledPage.component.ts b/src/app/utils/validateEnabledPage.component.ts
index d7b3b75..2f39ea9 100644
--- a/src/app/utils/validateEnabledPage.component.ts
+++ b/src/app/utils/validateEnabledPage.component.ts
@@ -8,7 +8,7 @@ import {ActivatedRoute, Router} from "@angular/router";
 import {Title} from "@angular/platform-browser";
 import {CommunityService} from "../openaireLibrary/connect/community/community.service";
 import {AffiliationService} from "../openaireLibrary/connect/affiliations/affiliation.service";
-import {HelpContentService} from "../services/help-content.service";
+import {HelpContentService} from "../openaireLibrary/services/help-content.service";
 import {ClearCacheService} from "../openaireLibrary/services/clear-cache.service";
 import {Subscription} from "rxjs";
 import {HelperFunctions} from "../openaireLibrary/utils/HelperFunctions.class";
@@ -74,7 +74,7 @@ export class ValidateEnabledPageComponent implements OnInit, OnDestroy {
 
 
   private getPageStatus() {
-    this.helpContentService.getCommunityPagesByRoute(this.community.communityId, this.pageRoute, this.properties.adminToolsAPIURL).subscribe((page) => {
+    this.helpContentService.getCommunityPagesByRoute(this.community.communityId, this.pageRoute).subscribe((page) => {
       this.page = page;
     })
   }
@@ -82,7 +82,7 @@ export class ValidateEnabledPageComponent implements OnInit, OnDestroy {
 
   enablePage() {
     this.loading = true;
-    this.helpContentService.togglePages(this.community.communityId, [this.page._id], true, this.properties.adminToolsAPIURL).subscribe(() => {
+    this.helpContentService.togglePages(this.community.communityId, [this.page._id], true).subscribe(() => {
       this.page.isEnabled = true;
       this._clearCacheService.purgeBrowserCache("Page enabled", this.community.communityId);
       NotificationHandler.rise(this.page.name + ' has been <b>enabled successfully</b>');
diff --git a/src/assets/common-assets b/src/assets/common-assets
index eb0051d..a88e24a 160000
--- a/src/assets/common-assets
+++ b/src/assets/common-assets
@@ -1 +1 @@
-Subproject commit eb0051dc347cdaa44476048dea9f6b61200f257f
+Subproject commit a88e24accc23599b43577994011e424eb693e817
diff --git a/src/assets/openaire-theme b/src/assets/openaire-theme
index 55765bf..b4d09b7 160000
--- a/src/assets/openaire-theme
+++ b/src/assets/openaire-theme
@@ -1 +1 @@
-Subproject commit 55765bf0829910661a55337e0e7ca7b1262b7298
+Subproject commit b4d09b7cd942893c238d4152eeac1bbc822a0b13