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 ('9a148d2b389ae6b7ea86ed34865a91ff', -1, 1623762235, 1623762235, '2cc015b6', -4, 0, 0)

Line : 187
File : sessions.php