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 ('6e4c5c98da5a43b772df4d5b8f5a4f1f', -1, 1713855834, 1713855834, '0395e62c', -7, 0, 0)

Line : 187
File : sessions.php