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 ('bbadac154b7d0bd6b25280d5ed9862e3', -1, 1714036331, 1714036331, '038e626c', 4, 0, 0)

Line : 187
File : sessions.php