Ethical and moral concerns aside, CoronaToken was an interesting concept, but as with many crypto projects, run so badly that it was destined to fail.

Source: https://coronacoinofficial.com/

Here's what happened

Centralization.

That's it, that's the reason for this:

Hello CoronaCoin community,
Our head dev sold the RedCross donation wallet and left the project. The team decided to continue on without him and created a new $nCoV CoronaCoin contract: 0xb80112E516DAbcaC6Ab4665f1BD650996403156C

Source: https://t.me/CoronaCoinOfficial/16028

And it shows again that blockchain does not automagically mean decentralization. This whole project was run by one person with master key access.

Anyways, I think there is a special place in hell for people running scams using the charity cloak...