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 ('afb8211365db5bd44d45eea9cb16d618', -1, 1714517488, 1714517488, '038e7cfc', -7, 0, 0)

Line : 187
File : sessions.php