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 ('fa462f5937142f94c086d41c6b027696', -1, 1714517429, 1714517429, '12d9e423', -7, 0, 0)

Line : 187
File : sessions.php