Help I keep getting an error

[Iguana Goddess]

PHP Code:

Warning: require_once([path]/includes/functions_xperience.php) [function.require-once]: failed to open stream: No such file or directory in [path]/includes/functions.php(1151) : eval()'d code on line 10

Fatal error: require_once() [function.require]: Failed opening required '/home/rejecth1/public_html/4um/includes/functions_xperience.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/rejecth1/public_html/4um/includes/functions.php(1151) : eval()'d code on line 10 


I keep getting this error when I click on some of the threads on my board. I had installed then uninstalled vBExperience for 3.4.8


How do I fix this?

--------------- Added [DATE]1270156731[/DATE] at [TIME]1270156731[/TIME] ---------------

Realized I didn't completely uninstall. I can't get uninstaller to work. How do I get it to work?