When trying to register a wiki one gets the following notice:
Notice: Use of undefined constant occurrences - assumed 'occurrences' in /.../extensions/SMW-Registry/includes/SMWRegistrySQL.php on line 155
As a result I get the following message:
Semantic MediaWiki could not be found at http://cacertberlin.wikihoster.net/whn/ (either the page Special:Version was not found at all, or SMW's version could not be determined from that page).
Version: unspecified
Severity: normal