Fixed bugs in administrator panel (#1047)

app/models/room.rb

@@ -49,7 +49,9 @@ class Room < ApplicationRecord
     # Include the owner of the table
     table = joins(:owner)
 
-    return table.order(Arel.sql("rooms.#{column} #{direction}")) if table.column_names.include?(column) || column == "users.name"
+    return table.order(Arel.sql("rooms.#{column} #{direction}")) if table.column_names.include?(column)
+
+    return table.order(Arel.sql("#{column} #{direction}")) if column == "users.name"
 
     table
   end