Error 403 on Windows portal

As I mentioned on the FB group- although all other functions are normal any attempt to display either Dashboard on a PC (tested in Chrome AND Edge) results in a 403 error. All other portal pages work as normal and does Android app . Looks like a server error??

I also get an Error 500 when trying to access the Power Graph's tab on the portal.

Mines working fine so try clearing your browser cache (or use a different browser)