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 ('6c904a4e824d0f536e153810d9fd4ae6', -1, 1714611877, 1714611877, '340e820d', 18, 0)

Line : 158
File : sessions.php