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 ('cac4b8efd09b18406ec89188486d2086', -1, 1714341535, 1714341535, '0315613d', 11, 0)

Line : 158
File : sessions.php