phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('d5f94a3b3d39ec4d2a6aade0f1959772', -1, 1713945280, 1713945280, '0391ad70', -11, 0, 0)

Line : 187
File : sessions.php