phpBB : Critical Error

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) VALUES ('f1180ef4ee3e838653645e979b7b21bb', -1, 1714739862, 1714739862, '03936878', 20, 0)

Line : 158
File : sessions.php