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 ('df5523ca1fe7020a48270570beaf9498', -1, 1714331621, 1714331621, '12759e2f', 8, 0)

Line : 158
File : sessions.php