Does not enter the VC through the phone. What to do?
There can be many reasons! Maybe a DDoS attack is going on again! Maybe you have problems with the Internet, maybe just hosting the site freezes! Try to just wait! Or your account was stolen !!
This is the failure of the browser that is installed in the phone. Install the Yandex browser, it will all work through it. I recommend also to update the phone's software and most likely through Google you will also normally visit the VC website.
Try to update or reinstall the VC on your phone. Perhaps some kind of crash occurred when you closed the application. Or backup it, although the phones usually do it themselves (well, or this is just my "quot; smart").