Same problem here and I have absolutely nothing on the website. I am just testing if this service is reliable to host my blog but it looks like it is a joke!
You do not have the SAME error - check the 'Perms' in cPanel's file manager
Folder [ public_html ] for [ 0750 ]
all folders and there sub-folders inside that folder for [ 0755 ]
all files in [ public_html ] and in folders inside of it and in sub-folders of those folders for [ 0644 ]
be sure you do not have a 'block' in any [ .htaccess ] file
any folder or file with a 'Perm' of [ 0777 ] will not make your day