Admin page shows blank

Hello

We have removed some module and after that it shows blank admin screen ...i checked recent log file

it shows following code can some one help us to get rectify the same we tried reinstalling the zen cart before same issues happened but due to other modules and configuration we cannot reinstall the same its tedious process i can say so by looking in to error if some one can help that would be gr8

here is the error

[07-Jan-2012 03:48:30] PHP Fatal error: Cannot redeclare bmz_split_version_string() (previously declared in /home/vivasupp/public_html/renamedadmin/includes/functions/extra_functions/functions_bmz_update_old.php:13) in /home/vivasupp/public_html/renamedadmin/includes/functions/extra_functions/functions_bmz_update.php on line 36

That extra_functions folder loads ALL the files which end in .php
So, since you renamed a file and kept the .php extension on it, the system is loading the old one first, and then trying to load the new one, which duplicates the same stuff.

/home/vivasupp/public_html/renamedadmin/includes/functions/extra_functions/functions_bmz_update_old.php
/home/vivasupp/public_html/renamedadmin/includes/functions/extra_functions/functions_bmz_update.php

Rule of thumb: whenever you make a "backup" copy of a file by renaming it, DO NOT keep the ".php" extension. Instead, use .bak or .php1 or something else. Or delete the file altogether after copying the backup to your own PC for safekeeping.

Also, in the future, please DO NOT start new threads on the SAME topic in multiple places, such as this.
ie: http://www.zen-cart.com/forum/showthread.php?t=190751

It's akin to spamming the forum, and is frowned upon, and makes more work for volunteers who answer questions.