Two issues:

1. First and less important. The error you generate does not say anything about the VPN being blocked
   Here it is:
   

2. Second and more important .
   You CANNOT decide to shutdown a service to PAYING customers just because of their network settings. VPNs are widely used and as I’m on a public networks for weeks they are my only option.
   The bug is that your login server shuts down my connection.
   
   And - since you require a pass through the login EVERY time (there is a separate bug about that by another frustrated customer) - you shut down the whole weather service.

Now - I understand prevention from DDoS attacks somewhat and filtering VPNs is the crudest and one of the more ineffective ways to do it.
But you should allow a path for your paying customers to access the service. The login server should not be part of that “protection” and allow login. And then once logged as a premium account all such “protections” should be bypassed.

(Excuse any potential typos, as I’m writing from a phone. You don’t allow my laptop in)