phpBB : Kritična greška

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, session_forum) VALUES ('a6785a3d5d02603ed72c6712964aa2f2', -1, 1568809849, 1568809849, '12cec253', 5, 0, 0, 0)

Line : 190
File : sessions.php