phpBB : Erro Crítico

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a8109aaa269cf8cb7b9664c5bf288ddf' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a8109aaa269cf8cb7b9664c5bf288ddf', -1, 1769728054, 1769728054, 'd849d8bb', -9, 0, 0)

Line : 187
File : sessions.php