This is happening because you are entering an invalid URL for your site. To access your site you need to enter your URL exactly. Here's a few things to check:

the URL should begin with https:// not http://
the URL should not include www. For example, if your site is https://xyzpractice.writeupp.com you should not enter https://www.xyzpractice.writeupp.com
Only .com will work .co.uk or any other suffix will not work

If you have forgotten your URL please take a look at the article below:

I've forgotten my login URL

Published on: 25 / 11 / 2020