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) VALUES ('f93cae32a8b90c8821e65d50fea9ddf8', -1, 1714397039, 1714397039, '12da303e', -9, 0)

Line : 158
File : sessions.php