Game Not Opening

My Fc mobile was running good on my Sparx Neo 10 mobile no glitch no lag until tomorrow when I opened the game and despite the fact that my internet was running very good, it was giving me the message of storage full and internet not sufficient or not connected. I tried to run the game after deleting two to three apps in case it ran out of storage which was not it still crashed and then I uninstall it and install again but now it is not even opening when I open it a notification says download overload not connected to internet whereas my internet is running smoothly. I have tried hundred of methods to make it correct but still the issue. Please resolve it as soon as possible thanks 🙏