Deletion of pages does not work
If you try to delete a page at https://vpro0100.proserver.punkt.de an execution is thrown
"Exception
An exception occurred while executing 'SELECT `uid` FROM `tx_certifications_domain_model_certificate` WHERE (`pid` = ?) AND (`tx_certifications_domain_model_certificate`.`deleted` = 0)' with params [90]:
Table 't3o.tx_certifications_domain_model_certificate' doesn't exist"