diff --git a/internal/common/connection.go b/internal/common/connection.go
index a8374f64..dd49008f 100644
--- a/internal/common/connection.go
+++ b/internal/common/connection.go
@@ -1728,9 +1728,9 @@ func (c *BaseConnection) GetGenericError(err error) error {
 		}
 		return sftp.ErrSSHFxFailure
 	default:
-		if err == ErrPermissionDenied || err == ErrNotExist || err == ErrOpUnsupported ||
-			err == ErrQuotaExceeded || err == ErrReadQuotaExceeded || err == vfs.ErrStorageSizeUnavailable ||
-			err == ErrShuttingDown {
+		if errors.Is(err, ErrPermissionDenied) || errors.Is(err, ErrNotExist) || errors.Is(err, ErrOpUnsupported) ||
+			errors.Is(err, ErrQuotaExceeded) || errors.Is(err, ErrReadQuotaExceeded) ||
+			errors.Is(err, vfs.ErrStorageSizeUnavailable) || errors.Is(err, ErrShuttingDown) {
 			return err
 		}
 		c.Log(logger.LevelError, "generic error: %+v", err)
diff --git a/internal/vfs/azblobfs.go b/internal/vfs/azblobfs.go
index a091eaf8..83e80ae9 100644
--- a/internal/vfs/azblobfs.go
+++ b/internal/vfs/azblobfs.go
@@ -482,7 +482,7 @@ func (*AzureBlobFs) IsNotSupported(err error) bool {
 	if err == nil {
 		return false
 	}
-	return err == ErrVfsUnsupported
+	return errors.Is(err, ErrVfsUnsupported)
 }
 
 func (*AzureBlobFs) isBadRequestError(err error) bool {
@@ -782,7 +782,7 @@ func (fs *AzureBlobFs) renameInternal(source, target string, fi os.FileInfo, rec
 				return numFiles, filesSize, err
 			}
 			if hasContents {
-				return numFiles, filesSize, fmt.Errorf("cannot rename non empty directory: %q", source)
+				return numFiles, filesSize, fmt.Errorf("%w: cannot rename non empty directory: %q", ErrVfsUnsupported, source)
 			}
 		}
 		if err := fs.mkdirInternal(target); err != nil {
diff --git a/internal/vfs/gcsfs.go b/internal/vfs/gcsfs.go
index 5dd1874d..994914bf 100644
--- a/internal/vfs/gcsfs.go
+++ b/internal/vfs/gcsfs.go
@@ -19,6 +19,7 @@ package vfs
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"mime"
@@ -448,7 +449,7 @@ func (*GCSFs) IsNotSupported(err error) bool {
 	if err == nil {
 		return false
 	}
-	return err == ErrVfsUnsupported
+	return errors.Is(err, ErrVfsUnsupported)
 }
 
 // CheckRootPath creates the specified local root directory if it does not exists
@@ -774,7 +775,7 @@ func (fs *GCSFs) renameInternal(source, target string, fi os.FileInfo, recursion
 				return numFiles, filesSize, err
 			}
 			if hasContents {
-				return numFiles, filesSize, fmt.Errorf("cannot rename non empty directory: %q", source)
+				return numFiles, filesSize, fmt.Errorf("%w: cannot rename non empty directory: %q", ErrVfsUnsupported, source)
 			}
 		}
 		if err := fs.mkdirInternal(target); err != nil {
diff --git a/internal/vfs/s3fs.go b/internal/vfs/s3fs.go
index ece051a3..a7d7177e 100644
--- a/internal/vfs/s3fs.go
+++ b/internal/vfs/s3fs.go
@@ -482,7 +482,7 @@ func (*S3Fs) IsNotSupported(err error) bool {
 	if err == nil {
 		return false
 	}
-	return err == ErrVfsUnsupported
+	return errors.Is(err, ErrVfsUnsupported)
 }
 
 // CheckRootPath creates the specified local root directory if it does not exists
@@ -700,7 +700,7 @@ func (fs *S3Fs) renameInternal(source, target string, fi os.FileInfo, recursion
 				return numFiles, filesSize, err
 			}
 			if hasContents {
-				return numFiles, filesSize, fmt.Errorf("cannot rename non empty directory: %q", source)
+				return numFiles, filesSize, fmt.Errorf("%w: cannot rename non empty directory: %q", ErrVfsUnsupported, source)
 			}
 		}
 		if err := fs.mkdirInternal(target); err != nil {
diff --git a/static/locales/en/translation.json b/static/locales/en/translation.json
index cb89e2c3..e0dba7b9 100644
--- a/static/locales/en/translation.json
+++ b/static/locales/en/translation.json
@@ -328,7 +328,8 @@
             "err_generic": "Error moving files/directories",
             "err_403": "$t(fs.move.err_generic). $t(fs.err_403)",
             "err_429": "$t(fs.move.err_generic). $t(fs.err_429)",
-            "err_exists": "$t(fs.move.err_generic). $t(fs.err_exists)"
+            "err_exists": "$t(fs.move.err_generic). $t(fs.err_exists)",
+            "err_unsupported": "Unsupported: if you want to move a directory make sure it is empty"
         },
         "rename": {
             "title": "Rename \"{{- name}}\"",
@@ -336,7 +337,8 @@
             "err_generic": "Unable to rename \"{{- name}}\"",
             "err_403": "$t(fs.rename.err_generic). $t(fs.err_403)",
             "err_429": "$t(fs.rename.err_generic). $t(fs.err_429)",
-            "err_exists": "$t(fs.rename.err_generic). $t(fs.err_exists)"
+            "err_exists": "$t(fs.rename.err_generic). $t(fs.err_exists)",
+            "err_unsupported": "Unsupported: if you want to rename a directory make sure it is empty"
         },
         "upload": {
             "text": "Upload Files",
diff --git a/static/locales/it/translation.json b/static/locales/it/translation.json
index f73fd873..4ae125e7 100644
--- a/static/locales/it/translation.json
+++ b/static/locales/it/translation.json
@@ -328,7 +328,8 @@
             "err_generic": "Errore nello spostamento di file/directory",
             "err_403": "$t(fs.move.err_generic). $t(fs.err_403)",
             "err_429": "$t(fs.move.err_generic). $t(fs.err_429)",
-            "err_exists": "$t(fs.move.err_generic). $t(fs.err_exists)"
+            "err_exists": "$t(fs.move.err_generic). $t(fs.err_exists)",
+            "err_unsupported": "Non supportato: se vuoi spostare una directory assicurati che sia vuota"
         },
         "rename": {
             "title": "Rinomina \"{{- name}}\"",
@@ -336,7 +337,8 @@
             "err_generic": "Impossibile rinominare \"{{- name}}\"",
             "err_403": "$t(fs.rename.err_generic): $t(fs.err_403)",
             "err_429": "$t(fs.rename.err_generic): $t(fs.err_429)",
-            "err_exists": "$t(fs.rename.err_generic). $t(fs.err_exists)"
+            "err_exists": "$t(fs.rename.err_generic). $t(fs.err_exists)",
+            "err_unsupported": "Non supportato: se vuoi rinominare una directory assicurati che sia vuota"
         },
         "upload": {
             "text": "Carica file",
diff --git a/templates/webclient/files.html b/templates/webclient/files.html
index 21582359..bff366df 100644
--- a/templates/webclient/files.html
+++ b/templates/webclient/files.html
@@ -1428,6 +1428,9 @@ explicit grant from the SFTPGo Team (support@sftpgo.com).
                 let errorMessage = "";
                 if (error && error.response) {
                     switch (error.response.status) {
+                        case 400:
+                            errorMessage = "fs.move.err_unsupported";
+                            break;
                         case 403:
                             errorMessage = "fs.move.err_403";
                             break;
@@ -1640,6 +1643,9 @@ explicit grant from the SFTPGo Team (support@sftpgo.com).
                 let errorMessage;
                 if (error && error.response) {
                     switch (error.response.status) {
+                        case 400:
+                            errorMessage = "fs.rename.err_unsupported";
+                            break;
                         case 403:
                             errorMessage = "fs.rename.err_403";
                             break;