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, session_admin) VALUES ('fe403e75fb6559ce1be001c820180f28', -1, 1714034424, 1714034424, '0387be65', -10, 0, 0)

Line : 187
File : sessions.php