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 ('d1cdb56fb1ef9e1dd55b9c87715e9bb5', -1, 1714029423, 1714029423, '03100f95', -11, 0, 0)

Line : 187
File : sessions.php