it looks like an server lagging problem
i am from china mainland and i can use app without problesm before last week.
but now i need use a vpn to enter the interface faster
and even i use a vpn, i can’t active any cheats at all, it just keep circling after i click the playing button
Hello and welcome to the community. 
Lagging is usually a hardware issue, not a software issue. I myself have not experienced the same issues as you.
China has recently tightened its control over the national internet and is throttling people trying to connect to international gaming communities. I doubt local media agencies have reported this, so here are some sources from outside China:
You may need to use a VPN to see the links.
Also, because of the COVID-19 pandemic and everyone being at home, most nations are experiencing a very heavy strain on their internet networks right now.
When cheats don’t load, it is usually because of interference from an antivirus or firewall. See this post here for help with that: Wemod failed loading the cheats into your game