While loading the site example.com, I see the following error:
This webpage has a redirect loop
The issue occurs when two different redirects are used:
a. Some CMS engines (like Joomla) have their own redirect system in an
b. Parallels Plesk Panel (Plesk) has a Preferred domain option, which adds a 301 redirect for the domain.
If the preferred domain value in Plesk is set to "domain.tld" and CMS redirects all requests to "www.example.com", you will get a redirect loop.
If you have a CMS with its own redirect system, it is recommended that you set the Preferred domain option to "None".