diff --git a/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/server/storage/FilesStorage.java b/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/server/storage/FilesStorage.java
index dbf505c..1da6079 100644
--- a/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/server/storage/FilesStorage.java
+++ b/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/server/storage/FilesStorage.java
@@ -814,22 +814,22 @@ public class FilesStorage {
 						Metadata metadata = sharedFolder.getUsers();
 						shared = new ArrayList<>(metadata.getValues().keySet());
 					} else {
-						logger.error("The folder is shared but is not of type SharedFolder: itemId=" + itemId + "]");
+						logger.error("The folder is shared but is not of type SharedFolder: [itemId=" + itemId + "]");
 						if (folderItem.getOwner() != null && !folderItem.getOwner().isEmpty()) {
 							shared.add(folderItem.getOwner());
 						} else {
-							logger.error("Invalid owner for: itemId=" + itemId + "]");
+							logger.error("Invalid owner for: [itemId=" + itemId + "]");
 						}
 					}
 				} else {
 					if (folderItem.getOwner() != null && !folderItem.getOwner().isEmpty()) {
 						shared.add(folderItem.getOwner());
 					} else {
-						logger.error("Invalid owner for: itemId=" + itemId + "]");
+						logger.error("Invalid owner for: [itemId=" + itemId + "]");
 					}
 				}
 			} else {
-				logger.debug("Folder null: itemId=" + itemId + "]");
+				logger.debug("Folder null: [itemId=" + itemId + "]");
 			}
 
 			logger.debug("Shared: " + shared);