Error in Web Activity - Data Factory

Need your assistance, Guys.

I am building a pipeline in Azure Data Factory which will do the following steps:

• Query the Azure Sql DB to get list of unique email addresses (lookup1 activity)
• For each email address the Store Procedure will prepare the data. This data will be converted to json format (lookup2 activity)
• In the web activity this data will be send to Logic App
• The data be then formatted and send by emails. Each recipient will receive the customized email with the data relevant to his activities
  I got stuck on the web activity having the error:

Error code2108
Troubleshooting guide
Failure typeUser configuration issue
Details{"error":{"code":"MissingApiVersionParameter","message":"The api-version query parameter (?api-version=) is required for all > >requests."}}

Tried researching but unlucky so far.

My Logic App Endpoint is like:
https://prod-30.eastus2.logic.azure.com:443/workflows/xxxxxxx
where xxxxxx is a set of figures.

Would be so, so grateful if someone can shed some light on it.
What is wrong / missing in my configuration?
Thanks in advance