After the popularity and growth of cryptocurrencies in the world in 2017, after the fall of many people, they predicted that many of the current currencies would be destroyed by 2020, and so it was!
Nyancoin is a relatively old project that started in 2014. But the last day registered for its activity in coinmarketcap is July 18, 2019 and currently in coinmarketcap this currency is displayed with inactive tag.
I also checked the coingecko and there, like the CMC, stated that this currency is…