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 ('55bb92afeea4e938e64f0c7d0c663efd', -1, 1714710345, 1714710345, '12d90852', -11, 0)

Line : 158
File : sessions.php