I just tried to add a domain-alias to a domain as a reseller.
First I noticed (as you can see in the screenshot) that the Url under "Weiterleiten" had no "http://" in front of it...
then I tried to delete it, but it didn't really delete. It only said unknown error (screenshot). I can't delete the alias anymore, I also can't add a new one with that name, because it sais, it already exists.
Please help me, thank you very much in advance!