- Plesk Onyx for Windows
- The Plesk server without PHP and MySQL installed.
- Unable to install Wordpress from APS catalog with the error:
PLESK_ERROR: Domain "example.com": the PHP handler is not registered
This is Plesk bug #PPPM-10705 which will be fixed in future product updates.
As a workaround:
- Connect to the server via RDP
- Install PHP handlers and MySQL server at Tools & Settings > Updates & Upgrades