Constantly Log Out From Arcade

Whenever I go into the arcade and click on a game to play I get this message:

The administrator has disabled viewing of the arcade for your member group. If you feel this is a mistake please PM an administrator and let them know.

and not only I get that message but it completely logs me out from the forum.

But then when I refresh my page and go back into the arcade the second time and play a game I get no problems at all.

Any solution for this ?

[hayaldunya]

I'm looking for the solution of this problem...