Thread:Project:Support desk/I can't create new items in Mediawiki

MediaWiki 	1.12.0 (r56) PHP 	5.3.5-1ubuntu7.2 (apache2handler) MySQL 	5.1.54-1ubuntu4

I have a problem with my mediawiki installation. When I try to edit a blank page (by clicking a recently created tag), the apache server returns the following message:Warning: Parameter 2 to Parser::parse expected to be a reference, value given in /var/www/html/mediawiki/includes/StubObject.php on line 32 Fatal error: Call to a member function getText on a non-object in /var/www/html/mediawiki/includes/OutputPage.php on line 487.

Sorry, but I can't publish any IP address because is a local installation. Thank you