Extension talk:BackLinksFunctions

When I try to use this extension on my computer, there is an warning like this: Is this a bug, or something else?

Environment:
 * Windows XP With SP2
 * Apache 2.2.3
 * MediaWiki 1.8.2
 * MySql 5.0.27
 * PHP 5.2.0

That problem is solved with the new source.