Ultra pipeline sending no response

i’m creating an ultra task for my pipeline and tried to execute it through third party client. But i’m receiving no response though i have an un-linked input and output view. Also in dashboard my pipeline is showing inactive… any suggestions??
this is the main pipeline:
This is the child pipeline:

Possibly your file reader/join snap in child pipeline is producing 0 output document?

nope…upon validation, it is generating data