Topic on User talk:Osnard

I get this error, when using BibManager Tags. Googled and Qwanted a lot, but could not find the reason. Some hint would be appreciated.

Many Thanks.

Here is the complete error trace:

[ea044aa8cdd04b374f0044c2] /index.php/Extension:BibManager_Test Error: Class 'XML' not found

Backtrace:

from /var/www/html/extensions/BibManager/includes/BibManagerHooks.php(205)

#0 /var/www/html/includes/parser/Parser.php(3979): BibManagerHooks::onBiblistTag(NULL, array, Parser, PPFrame_Hash)

#1 /var/www/html/includes/parser/PPFrame_Hash.php(353): Parser->extensionSubstitution(array, PPFrame_Hash)

The Test page is:

<bib id="Delta" />

<biblist />

Which version of MediaWiki is used?