Extension talk:SectionLinkToTop

Undefined Constant error
Hey, i get the following error - how can it be fixed?

MediaWiki: 1.15.1

PHP: 5.2.12 (cgi-fcgi)

MySQL: 5.0.67-log


 * At the moment, I can only confirm your observation, I see the same error message in my log files. Action: I changed to