I had the same issue, able to create functions now by enabling the serverless module from the Kyma dashboard.

In my case, I was using JDK 8 and installed the plugin from "https://tools.hana.ondemand.com/photon". When I looked into "https://tools.hana.ondemand.com/#abap", I came to know that I need JDK 11 or above and right link to install ADT is https://tool...