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 ('e48b1f4a0639827b3cd518d66aa84e25', -1, 1714215489, 1714215489, '038595a8', 21, 0)

Line : 158
File : sessions.php