i created my account and downloaded the game on my pc but after i open the client it wont let me login to sliver or gold 

Hey, what error message are you receiving when you are trying to login?
Did you register your account on that website? https://pokemonrevolution.net/register

yes i registered on the account before i downloaded the client and im gettin and invalid username or password message 

Could it be that you used any special characters on your password like !"§$%&/()=?*'_:;,.-#+è etc.?

No need to provide any details but if you did then please change your password to only normal letters and numbers and see if it works after that.

You can use the dashboard as well to change your password.

 

https://dashboard.pokemonrevolution.net/dashboard

 

https://pokemonrevolution.net/forgot-password

just checked it to make sure and it is normal letters and numbers but i am changing it just to make sure i will keep you updated thank you

change password and it still wont let me log in to any server still says invalid username and or password 

Whats the username you registered?

Can you try to reboot your device and login after you did that if you havent done that already?