Hosting not working after changing the nameserver ? Please Help

Hosting not working after changing the nameserver it showa the error “Error. Page cannot be displayed. Please contact your service provider for more details. (20)”

Where do you see that error? Do you have a URL we can check?

It’s my domain: bloggingforevers.com .

after pointing my DNS to infinityfree this error started showing

The domain is working fine from here. Did you change the nameservers recently? If so, check this article: https://infinityfree.net/support/why-doesnt-my-domain-work/