I installed WordPress through QuickInstall, but I can't access to set up my blog

I’m a blogger and I’m doing the migration from Blogger to WordPress with a hosting service with my web address. The problem of this subject is that I installed WordPress through QuickInstall on cPanel, and when I type my web address with the suffix ‘/wp-admin/’, It doesn’t show the setup screen to create my blog.

I followed step by step the instructions of how to install the platform, and even I create the MySQL database to work correctly (including the famous _wrdp1). I tried to call to the hosting provider (https://mi.com.co) if they have support, but unfortunately they don’t have it for the moment.

Is the first time I do the migration and I don’t want to have many headaches finding a possible solution of this problem.