phpBB : Критическая ошибка

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) VALUES ('345f328da5ec6115cc78340a501d9809', -1, 1550349702, 1550349702, '36eb37fd', 0, 0)

Line : 158
File : sessions.php