Install libnginx-mod-http-cache-purge by entering the following commands in the terminal:
sudo apt update sudo apt install libnginx-mod-http-cache-purge
Description:
Purge content from Nginx caches
Cache Purge module adds purging capabilities to Nginx. It allows purging content from caches used by all of Nginx proxy modules, like FastCGI, Proxy, SCGI and uWSGI.
Homepage: http://nginx.net
Version: 1.14.0-0ubuntu1
Section: universe/httpd