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 ('d7c7bf76fedb74dbe25eb39bf77e133f', -1, 1713583244, 1713583244, '12dafe7a', -10, 0, 0)

Line : 187
File : sessions.php