Yuppex is a trading window that is not working at the moment. It might be possibly restricted to a long list of countries according to certain laws of trading platforms and policies among regions. In my case, it has been possible to access the page because it gives me a window of error as if the URL were damaged, but it is not. I tried to use a VPN, but the server was no potent. So based on this, I clearly suggest that it is better to remain quiet, and not apply for this service as it practically does not exist for all traders.
I looked for information in other markets, especially in those content providers like the CoinMarketCap, but I found anything reliable since the only information held there mentions that this site has had small transactions. The roadmap is not clear, but the project is not up to date.
The chances for trading there were reduced as it never grew up and these services were expanded to other regions. The support for tokens is unknown. It might be holding just a dozen tokens or even less than that, but researchers can confirm it.
So, in conclusion, Yuppex is another trading platform with a feature of the untracked Project. For safety, it is better not to look for access. It does not offer anything valuable.