Balance 20 blocking website

We have a Balance 20 running 8.0.2 build 3667.
After updating to this version we can no longer get to
This site is very important for the operations of our business. Please help ASAP.

I have no problem to access with my Balance 20, 8.0.2. Please share the screenshot of Network > Content Blocking.

May I know the problem will disappear immediately if you reboot to the previous firmware version?