diff --git a/src/lang/cn.rs b/src/lang/cn.rs
index 2616e8ed2..184b09d36 100644
--- a/src/lang/cn.rs
+++ b/src/lang/cn.rs
@@ -191,5 +191,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Add to Favorites", "加入到收藏"),
         ("Remove from Favorites", "从收藏中删除"),
         ("Empty", "空空如也"),
+        ("Invalid folder name", "无效文件夹名称"),
     ].iter().cloned().collect();
     }
diff --git a/src/lang/fr.rs b/src/lang/fr.rs
index 711d2e20a..0abe576ef 100644
--- a/src/lang/fr.rs
+++ b/src/lang/fr.rs
@@ -186,5 +186,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Password missed", "Mot de passe manqué"),
         ("Wrong credentials", "Identifiant ou mot de passe erroné"),
         ("Edit Tag", "Modifier la balise"),
+        ("Invalid folder name", "Nom de dossier invalide"),
     ].iter().cloned().collect();
     }
diff --git a/src/lang/it.rs b/src/lang/it.rs
index 0b6f2ee15..83426a908 100644
--- a/src/lang/it.rs
+++ b/src/lang/it.rs
@@ -186,6 +186,7 @@ lazy_static::lazy_static! {
             ("Password missed", "Password dimenticata"),
             ("Wrong credentials", "Credenziali errate"),
             ("Edit Tag", "Modifica tag"),
+            ("Invalid folder name", "Nome della cartella non valido"),
         ].iter().cloned().collect();
         }
     
\ No newline at end of file
diff --git a/src/ui/file_transfer.tis b/src/ui/file_transfer.tis
index 83365d0ee..786eef8cf 100644
--- a/src/ui/file_transfer.tis
+++ b/src/ui/file_transfer.tis
@@ -440,7 +440,7 @@ class FolderView : Reactor.Component {
           var name = res.name.trim();
           if (!name) return;
           if (name.indexOf(me.sep()) >= 0) {
-            msgbox("custom-error", "Create Folder", "Invalid folder name");
+            handler.msgbox("custom-error", "Create Folder", "Invalid folder name");
             return;
           }
           var path = me.joinPath(name);
@@ -576,16 +576,16 @@ handler.jobDone = function(id, file_num = -1) {
 handler.jobError = function(id, err, file_num = -1) {
   var job = deleting_single_file_jobs[id];
   if (job) {
-    msgbox("custom-error", "Delete File", err);
+    handler.msgbox("custom-error", "Delete File", err);
     return;
   }
   job = create_dir_jobs[id];
   if (job) {
-    msgbox("custom-error", "Create Folder", err);
+    handler.msgbox("custom-error", "Create Folder", err);
     return;
   }
   if (file_num < 0) {
-    msgbox("custom-error", "Failed", err);
+    handler.msgbox("custom-error", "Failed", err);
   }
   file_transfer.job_table.updateJobStatus(id, file_num, err);
 }
@@ -619,7 +619,7 @@ handler.confirmDeleteFiles = function(id, i, name) {
   if (i >= n) return;
   var file_path = job.path;
   if (name) file_path += handler.get_path_sep(job.is_remote) + name;
-  msgbox("custom-skip", "Confirm Delete", "<div .form> \
+  handler.msgbox("custom-skip", "Confirm Delete", "<div .form> \
         <div>" + translate('Deleting') + " #" + (i + 1) + " / " + n + " " + translate('files') + ".</div> \
         <div>" + translate('Are you sure you want to delete this file?') + "</div> \
         <div.ellipsis style=\"font-weight: bold;\" .text>" + name + "</div> \