DOWNLOAD THE INSTALLER BY CLICKING THE DOWNLOAD IMAGE ON THE LEFT PORTION.
Download the file, install it on your computer. After installing the Crazy Kart, open the Crazy Kart program on desktop. Let it patch and wait until fully patch.
As soon as it finished the patch don't open yet your Crazy Kart. First find the GAMECONST which is located here:
Double-click the GAMECONST and find this section
Then change the 1 to 2 Close the file and save. Go to your Crazy Kart program and you can now login your account.