I initially tried TunnelBear and I switched cause I had the same issue. the one I use (PureVPN) is paid, but I think some people in the discord use vpngate. As for the account. You could potentially ask someone in the discord server, if you have an account if they have any tips for you
I started using SetupVPN on my desktop which was working a lot better than TunnelBear or HolaVPN so I've installed that on my phone as well. working flawlessly on desktop but phone im stuck on loading screen.
I'm unsure if its cause of the vpn cause one is working and the other isnt
edit: ahh looking at other comments on here, someone has the same problem on mobile. I think theres an app for OpenVPN on android, i'll give it a shot
this happens for me depending on the VPN. which one are you using?
I recommend SetupVPN chrome extension or OpenVPN on android using this link to download a .ovpn profile from japan
For OpenVPN you need to add a profile (.ovpn file) before connecting to VPN (the way to load .ovpn file on the app in iOS vs Android may be different). You can try to get free Japan VPN .ovpn profiles at http://www.vpngate.net/