arm64 rasbery pi 5, not worked

[Dmitrium12]

I did everything according to the guide for android, everything worked out, but at the time of launch it gives this error (I'm from root):

-bash: ./MinecraftClient: Permission denied

If I add sudo to the command:
sudo: ./MinecraftClient: command not found

or

sudo: MinecraftClient: command not found

please help me. I will be glad of any help

[ReinforceZwei]

sudo chmod a+x ./MinecraftClient then ./MinecraftClient