phpMyAdmin link example.com/phpmyadmin does not work:
500 internal server error File monitoring is enabled for a file which could not be found
Physical Path D:\Inetpub\vhosts\default\htdocs\PhpMyadmin\Index.php
Domain example.com does not exist on Plesk or in IIS.
Custom phpmyadmin installation for example.com domain inside
Either contact website developer or phpMyAdmin support directly to properly configure website, or move website to Plesk: create example.com domain in Plesk and move it's contents from
D:\Inetpub\vhosts\default\htdocs\ folder. This way you will be able to use phpMyAdmin that is supplied by Plesk.