Grover.exe

I tried to install it like 15 times with the different arm versions but nothing worked properly... i deleted it completely and only the c2.db file but nothing worked

So i'am hosting cloud c2 on a raspi 4 and when i try to connect via my Smartphone to the cloud i get the error message: "Your credentials are not valid." and the cloud crashes. I use the correct password and i dont know what the problem is. Thanks for your help.