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 ('65733879c75213e3c3d7021b3766c658', -1, 1714002817, 1714002817, '030c22b2', 7, 0)

Line : 158
File : sessions.php