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 ('42d990e0d62f303b5c41a6780b6fe5d2', -1, 1714336765, 1714336765, '030e8e73', 0, 0)

Line : 158
File : sessions.php