Via cyberduck I went to my space and deleted the kristalan.com because maybe I messed up a few things. i read that you do this a every 4months.!
I don't delete the whole "kristalan.com" folder I only delete the index.html file it and the "kristalan" folder (hence I delete only the files made by iWeb, not the HE folders/files).
If you by accident delete the "kristalan.com" folder again (which you shouldn't do unless something gets messed up) and don't see it in Cyberduck anymore you just need to login into your account from http://manage.hostexcellence.com
, under hosting products choose "manage" then "Domains" "Add new domain" and then enter the domain (kristalan.com), click Submit. It will then re-appear in Cyberduck.
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It now looks like the index.html file is right but the problem is that it redirects to a page called Welkom.html and this page is not in the "kristalan" folder. In theory everything should work so you're on the right track. Unfortunately the theory is only theory yet.
I think you built the Welkom page, published the site, uploaded the index.html file but didn't update the rest.
I really would
1. Delete the index.html file from the server and the "kristalan" folder (not the "kristalan.com" folder!)
2. Publish from iWeb
3. Re-upload index.html file and "kristalan" folder
The site works but I guess it's half new half old that's why I'd suggest you to replace the index file and the folder.