My Cloud OS 5 don't support zerotier app

After update my NAS MyCloud EX2 Ultra to My Cloud OS 5 zerotier app disappeared and when we try to reinstall it we have this notification:

App Installation Failed

*** Unable to upload app package for installation. Please check your network connection and try again.**

Yes, we’re aware. Please see the response in this thread: New My Cloud OS 5 for WD NAS