phpBB : Kritischer Fehler

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('ce3909d1f53d39e259c3b3bd0d792bc1', -1, 1623701778, 1623701778, '03d74f74', -19, 0, 0)

Line : 187
File : sessions.php