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 ('66489be0d67ca12ff35b6a58aba3d71f', -1, 1568976046, 1568976046, '23ac64e8', 27, 0, 0, 27)

Line : 190
File : sessions.php