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 ('561754f1b46e48670d54efc38fd35fb1', -1, 1623706380, 1623706380, '03d74f74', 16, 0, 0)

Line : 187
File : sessions.php