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 ('c038804c753234c3c33e747a42e1ec28', -1, 1713990443, 1713990443, '0aa8c802', 21, 0, 0)

Line : 200
File : sessions.php