[GNC] Price Quotes

[Les]

I have been using Yahoo as JSON for well over a year and now, today, 
when I tried to download quotes, I received an error indicating  that 
AlphaVantage needed to be installed for quotes. It is true that I had 
the SSD crash about three weeks ago and reinstalled Linux Mint 19.3 
along with GC. via Flatpak.  Since then the only problem I had 
downloading prices was HKD.

So, what has changed since yesterday?

Although I have an AlphaVantage API, I haven't used it for a long time.  
I think it was when the API was limiting the number of prices.

Any assistance with this issue would be greatly appreciated.

Thanks,

Les