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 ('12ac9e11122ce876c94ce09b49838b3c', -1, 1714655400, 1714655400, '03110544', 22, 0)

Line : 158
File : sessions.php