phpBB : Критическая ошибка

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '647e61f918c1f7a10e64a8ed2675eba7' for key 'PRIMARY'

INSERT INTO gisforum_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('647e61f918c1f7a10e64a8ed2675eba7', -1, 1715804435, 1715804435, '00000000', -4, 0)

Line : 161
File : sessions.php