I just installed PrestaShop 1.7.2.0 and I'm getting error 500 when I'm trying to access /admin. My admin folder on FTP is renamed to admin[random_string] (how? why?). Frontend seems to be working ok.
When I remove /admin/.htaccess I get 404, when I put it back, I get 500. I did change anything inside of it.
What could be a problem?