Input: Fix errors when searchInput doesn't exists.

sharedComponents/input/input.component.ts

@@ -530,8 +530,10 @@ export class InputComponent implements OnInit, OnDestroy, AfterViewInit, OnChang
               ?this.getFormByName(this.yearRange.from.control).errors:this.getFormByName(this.yearRange.to.control).errors));
     } else if(this.formAsControl) {
       return this.formAsControl.errors;
-    } else {
+    } else if(this.searchControl) {
       return this.searchControl.errors;
+    } else {
+      return null;
     }
   }