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 ('e208b6f9286ca7c45bf3bf4fa9a53350', -1, 1710820635, 1710820635, '03ec1217', -4, 0, 0)

Line : 187
File : sessions.php