LTE automatically off after x minutes

I am trying to use LlamaLab’s Automate to turn on LTE for only 5 or 20 minutes.

Flow beginning
Enable mobile data
Stop flow

Even without a ‘Wait’ etc. (as above) I get the msg “java.lang.UnsupportedOperationException: Privileged service disabled, see settings.”

These are mine now:

Anything I can do? A matter of incompatibility? Is there a fix?

(Using version 4.1.1-a15-20260719651411-community-FP3)