As discussed above, it's not the use of a VPN per se that is blocked, it's the specific IP address your VPN uses for you. if that IP address has recently been used by attackers, it's blocked. There are ways around this. You can try disconnecting and reconnecting your VPN, as it might assign a different IP address that might not be associated with bad actors. You can try choosing a different VPN access point. You can try a different VPN provider.