I am really sorry to let you know that there are temporary issues with the kurv.gr short links.
Everything should be back up and working in a few hours. If you need to open a kurv.gr link in the meantime, you can use:
kurvgr.kurviger.de/CODE
So for example https://kurv.gr/8Un8S
would become https://kurvgr.kurviger.de/8Un8S
.
Sorry for the inconvenicence
Creating new short urls is currently not possible and should work again in a few hours.
No short links have been lost.