After solving the Genres Problem i got this:
Call to a member function getContextId() on null in C:\htdocs\ojs-3.1.2-2\lib\pkp\classes\submission\reviewAssignment\ReviewAssignment.inc.php:526
Stack trace:
#0 C:\htdocs\ojs-3.1.2-2\lib\pkp\classes\submission\reviewAssignment\ReviewAssignment.inc.php(502): ReviewAssignment->isRead()
#1 C:\htdocs\ojs-3.1.2-2\lib\pkp\classes\submission\reviewRound\ReviewRound.inc.php(213): ReviewAssignment->getStatus()
#2 C:\htdocs\ojs-3.1.2-2\lib\pkp\classes\submission\reviewRound\ReviewRoundDAO.inc.php(260): ReviewRound->determineStatus()
#3 C:\htdocs\ojs-3.1.2-2\lib\pkp\classes\submission\reviewAssignment\ReviewAssignmentDAO.inc.php(462): ReviewRoundDAO->updateStatus(Object(ReviewRound))
#4 C:\htdocs\ojs-3.1.2-2\lib\pkp\classes\submission\reviewAssignment\ReviewAssignmentDAO.inc.php(538): ReviewAssignmentDAO->updateReviewRoundStatus(Object(ReviewAssignment))
#5 C:\htdocs\ojs-3.1.2-2\classes\install\Upgrade.inc.php(2023): ReviewAssignmentDAO->deleteById(‘83’)
#6 C:\htdocs\ojs-3.1.2-2\lib\pkp\classes\install in C:\htdocs\ojs-3.1.2-2\lib\pkp\classes\submission\reviewAssignment\ReviewAssignment.inc.php on line 526
What can i do now? Thanks in advance Stephan