fix errors

src/app/pages/chat/group-messages/group-contacts/group-contacts.page.ts

@@ -190,11 +190,22 @@ export class GroupContactsPage implements OnInit {
     });
   }
 
+  loading = false
   updateGroup(){
+    if(this.loading) {
+      return 
+    }
+    
+    this.loading = true
+    console.log('this.room', this.room)
+    
     this.chatService.getRoomInfo(this.room._id).subscribe(room=>{
       this.room = room['room'];
       this.addContacts(this.room);
       this.openGroupMessages(room['room']._id);
+      this.loading = false
+    }, ()=> {
+      this.loading = false
     });
   }