- PHP handler FPM application served by Nginx is not available at Plesk > Domains > example.com > PHP Settings
- However is enabled at Plesk > Tools & Settings > PHP Settings
nginx is not installed or not activated on the server.
nginx is usually disabled, or even not installed, then it is required to:
nginxis installed in:
Plesk > Tools&Settings > Updates and Upgrades > Add or Remove components > Web Hosting.
Note: Install it if it is not installed
Plesk > Tools&Settings > Service Management > Reverse proxy service (nginx) > Start