psWithdrawalForm ERROR: Translation for PSWDF_TITLE not found!

Hallo,
habe Problemm mit psWithdrawalForm:

ERROR: Translation for PSWDF_TITLE not found!

ERROR: Translation for PSWDF_MSG3 not found! ERROR: Translation for PSWDF_MSG4 not found!ERROR: Translation for PSWDF_MSG5 not found!


Fatal error: Call to undefined method oxConfig::getParameter() in /homepages/7/d4490/htdocs/seite.de/modules/proudsourcing/psWithdrawalForm/application/controllers/pswithdrawalform.php on line 117

Woran könnte es liegen?