fix chat room names

src/app/shared/chat/edit-group/edit-group.page.ts

@@ -42,7 +42,12 @@ export class EditGroupPage implements OnInit {
     this.chatService.getRoomInfo(this.roomId).subscribe(room=>{
       this.room = room['room'];
       
-      this.groupName = this.room.name.split('-').join(' ');
+      try {
+        this.groupName = this.room.name.split('-').join(' ');
+      } catch (error) {
+        this.groupName = this.room.name;
+      }
+      
     });
   }