Cant get VarAC going.

Hi Folks...

I am new to this game...

I initialise Vara no problem but when I start VarAC I get the following message...

Unhandled exception...

But I do see signals on the waterfall if I click 'continue...'

I am on Windows 10 and have no CAT on my FT767 everything went well a few days ago, the only change I made was to correct my maidenhead location.

Carl Emerson ZL3CX