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 ('734b16f20f202a95e884a9a4a0f01031', -1, 1623705668, 1623705668, '03d74f74', 6, 0, 0)

Line : 187
File : sessions.php