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 ('f88164e7a3af4e4d196b4d6070098f12', -1, 1534469287, 1534469287, '36c660c6', -11, 0)

Line : 167
File : sessions.php