Possible solutions of your questions

Hello.

What are you waiting for? Your account is just registered today. Where you want to display WordPress? Your question has no specifics. Give a link where you see the error.

Delete a file index.html, move files installed in the folder /public_html/wp in the folder /public_html.

You have not migrated the site. You without file index.php

You are installing the site from scratch or migrating from another hosting? if you are installing from scratch, it is better to pereustanovit website correctly

the first time You made a mistake when installing, set the folder of the website like wp , it`s not worth it.

please carefully review videos http://ded07.net/faq/softaculous/wp

the path to the folder if You do not specify Ustinovka and clean everything napisano  in the path field.

the files and database which You have now - remove

Result is similar to if you deleted the windows folder on your computer. Have you deleted the. system folder. Why did You do it? We will now peremeshaem You an account and You try again. 

Just carefully please. Any folder above the public_html can not touch it