Last modified: 2012-05-14 21:10:27 UTC
This error occurs on translatewiki, in SemanticMediaWiki and related to Validator: PHP Fatal error: Class 'StringParam' not found in /www/w/extensions/SemanticMediaWiki/includes/params/SMW_ParamFormat.php on line 15
Like I said on IRC, this seems to be caused by updating SMW while sticking with a to old version of Validator. Just update Validator, and it ought to go away. Working for me.