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 ('2ba4f86e2b82df2c3f5bc81a35bec7d4', -1, 1713988276, 1713988276, '0aa8c802', 48, 0, 0)

Line : 200
File : sessions.php