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 ('50a7a9e9993fcba82554559dfc64268f', -1, 1534450651, 1534450651, '36c42a08', -2, 0)

Line : 167
File : sessions.php