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 ('83f897b26693e72b46953d40419dd546', -1, 1714396771, 1714396771, '12761efd', -10, 0)

Line : 158
File : sessions.php