No , the developer is not longer supporting it
thanks for reply.
Just found this link for UE4.27
Using Ad Mob In-Game Ads on Android | Unreal Engine Documentation
No interest to me though
You may want to give this a try:
Note: I own a copy of this, but haven’t used it yet, so I can’t vouch for its usability or quality, although the reviews are all pretty positive, and it seems to be actively supported.