Arcade issues.

Here's my arcade: http://forums.steelersfever.com/arcade.php?

Notice the "
Warning: stristr() [function.stristr]: needle is not a string or an integer in [path]/arcade.php on line 5550" that always sits at the top? The background colors it out, but it's there.

Also, the games commonly time-out, even after increasing the forum process timeout to one hour and telling members to check the "remember me" box.

Members also insist that they do not refresh the page to load games, nor use the back button.

I'm running VBulletin 3.8.4 and Arcade version 2.7.2.

Any ideas what the problem is?

--------------- Added [DATE]1367121404[/DATE] at [TIME]1367121404[/TIME] ---------------

Used the newer arcade.php files mentioned in a thread on this forum to fix the stristr error, but will this new php file fix the timeouts as well?