OK, I assume you have the standard Administration module which contains your Account entity, rather than the UserManagement module. You need to add a microflow to the Administration module. I have exported it here so you can download it: OnFirstLoginAppCloudUser.mpk
After you have imported this to your Administration module, you need to change the call in the InvokeOnFirstLoginAppCloudUser microflow (where you have the errors) to call this new microflow.
Edit: I had to change the format to a zip file to allow download. Unzip the download to find the mpk file