Quote Originally Posted by EHSI View Post
Thank you.

I am running ZC 1.5.1 and IH4 which I downloaded a week ago and which does not include recent update (if there were any during this week).

I was running ZC 1.5.1 a week ago when I installed IH4 and it was running properly.
With that being said, it was working properly before, and then something changed to where it is not working properly? What else changed on your side? If it was working and then stopped, it's not something related to IH4 and you would need to post help in another thread if you can't resolve on your own.