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 ('d7893e1d6f9f03d23681ec4c00fbaaa9', -1, 1534442061, 1534442061, '36c6c30b', -7, 0)

Line : 167
File : sessions.php