Why am I getting an error message :invalid site key when signing in?

[Roy80]

I have tried different forms for which I have tax forms kite 1099r or 1099int but I get same message why?

[pesweet54]

I had same message with tax forms import from Vanguard. One of the following solved the problem for me:

1. Clear all cache in Safari

2. Turn off ad blocking in Eero Router

3. Reboot Mac

[Roy80 · Accepted solution]

So I was using NordVPN for web activity and an ad blocker Ghostery on Safari.

I turned both off and was able to download MS data. If I had to choose I would say the VPN confused my location so Capcha would not work.