Registration Error Wifi lock

Hi All

Went to add a guest user to my ultra-lock fingerprint wifi lock. Some reason wouldn’t work so I removed the lock from the app and tried to add again.
I got the message
Registration error please follow this article to fix.

So I did, but nothing really in there that helped. I did a factory reset and found my lock, but I still keep getting the same message.

Anyone else had this and got a fix, please.
Thanks

@Daz Hi there, we have contacted you in ticket #262216. Please kindly check your e-mail. Thanks!