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 ('d6ca8e40c9a2781513fa4b4b07461329', -1, 1713984902, 1713984902, '0aa8c802', 16, 0, 0)

Line : 200
File : sessions.php