phpBB : Критическая ошибка

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('3c9efb65f6aff63d69a8620bb0401fd2', -1, 1534450628, 1534450628, '36c42a08', 0, 0)

Line : 167
File : sessions.php