Why it works then when I run it manually?
Contabo’s bucket url is https://usc1.contabostorage.com/bucketname
If I add the name to discourse settings it’ll try to connect to https://bucketname.usc1.contabostorage.com/bucketname or https://bucketname.usc1.contabostorage.com/
and this doesn’t work with Contabo.