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 ('84bf355a115f3208f75574561d120c89', -1, 1713878252, 1713878252, '038ec5d4', 5, 0, 0)

Line : 187
File : sessions.php