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, session_admin) VALUES ('99ffc6ce8f50e35568f73d822da56367', -1, 1747391847, 1747391847, '0388119a', 39, 0, 0)

Line : 190
File : sessions.php