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 ('a975fa4e73d624f274be73687d43cc51', -1, 1534450573, 1534450573, '36c42a08', 10, 0)

Line : 167
File : sessions.php