Bitrota is an exchange without much information to know about, and without public access to its platform. Currently, the web page looks like if the URL is damaged because it does not grant access. It just loads and loads, but never permitted to access the platform. This issues has been happening repeatedly and has not been resolved. The teams seem to be not involved in what is happening there. It is possible that it was released but later abandoned. Anyway, there is no way to confirm that and give a better conclusion.
For now, it is recommendable not to persist in ways of accessing the page. Remember, there lots of fraud projects in this marketplace that can affect the financial life of traders. And if you're beginning in this field it is better to trust in the short pieces of advice given by advanced researchers. Of this project has not information on public markets, then it is a little legit and fair.
This is not the first time that something like this happens, but certainly, users are tired of finding networks without service. They are just something after ting the internet, and filling data that can be covered by any reliable network.
My conclusion, for now, is to keep aware that scammers exist, and many are already governing what we think is still in hands of their creators. The unconscious usage of VPNs might affect your digital life in those types of projects.