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 ('ad36f6324af7f870335e5e3f1a342536', -1, 1713989144, 1713989144, '0aa8c802', -4, 0, 0)

Line : 200
File : sessions.php