I just checked your site and it seems to be working fine now.
I did see that you removed the domain and added it again shortly before posting this. Note that removing a domain may also result in a “suspended” page, even while the hosting account it used to be on is active.
Please also make sure you have a valid index file uploaded to your htdocs directory. That’s a file with the name index.php, index.html or index.htm. If you don’t have such a file, or if it’s not in the right location, you will see a 403 error.