Weathermap error in LibreNMS -

Installed plugin weathermap, refer to this doc “Weathermap - LibreNMS Docs

Can’t open index.php now, show this error in /opt/librenms/logs

-I already changed permission by chmod 777 /opt/libremns/

Do you have any idea?

Server info:

Libremns Version 21.12.0-2-g1ac60e3b1 - Fri Dec 24 2021 05:32:02 GMT+0800
Database Schema 2021_11_29_165436_improve_ports_search_index (229)
Web Server nginx/1.18.0
PHP 7.4.3
Python 3.8.10
MySQL 10.3.32-MariaDB-0ubuntu0.20.04.1
Laravel 8.65.0
RRDtool 1.7.2
[PEAR 1.10.9]