Unable to access my Content Admin Area

I am unable to access my Netlify CMS Content Manager. Yesterday after creating a new accout I was able to enter blogs but today I changed my Netlify random site name and this problem started. Reset password didn’t help also as it says no user found. Netlify CMS is not connected with Netlify If I change site name, it should not automatically recognise the new site name? Please advise I am totally stuck.

Hi @emmadigital, I replied to you here https://github.com/netlify/netlify-cms/issues/3686