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 ('514415354ceb0eb53dd1dc83d646ddf9', -1, 1714356464, 1714356464, '12d87937', 3, 0)

Line : 158
File : sessions.php