Regarding my previous request, more information

Regarding my previous request, about the empty content of

When I try to access through my credentials
vía Admin URL:

The website directly redirect to:

(This is a subdomain that I created in order to have a testing environment for the website - both are different projects)

Yesterday I tried to instal Buzzignition program, but as the installation did not work, I have to delete some files. I am worry because maybe I delete some information that I shouldn´t

Could you pleas help me?

Thanks in advance,