phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO sub_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('323c525f05df89c9c10b46492968a938', -1, 1714517618, 1714517618, '03951ab0', -7, 0, 0)

Line : 187
File : sessions.php