phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO blitz_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('56af4cb6fcee0d05f6e359a656b6a08b', -1, 1713987862, 1713987862, '0aa8c802', -4, 0, 0)

Line : 200
File : sessions.php