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 ('2ab8d62e7e5c713f1aa03d917cd086ee', -1, 1714463404, 1714463404, '03104c2b', 8, 0)

Line : 158
File : sessions.php