How to change permissions (CHMOD) of a file or a directory? No comments yet

Answer: If you upload with File Manager all files/folders are uploaded/created by default with 755 permissions.
You can change the permissions of your files/folders only via FTP client. Most well-known FTP clients with a right click on a file/folder you can find an option for changing file/folder’s permissions.

Note: All php files need 755 permissions to work properly.

I uploaded my site but it doesn’t show up when I type in my domain/subdomain in a browser. No comments yet

Answer: Please check whether you uploaded the site to the exact location associated with the domain/subdomain. Visit the subdomain manager and you will find the folder for the site at all domains/subdomains within your account. Next, please visit your File Manager to check if the data has been uploaded correctly and that permissions of the files are 755.