kirby super star wont work

i dwnloaded it twice from this site and both times it boots up on my ds but says something like card cant be read please turn off ds. is any one else having this problem? how can i fix it?

https://www.romulation.org/forum/index.php/topic,1736.0.htmlYou need to specify what flashcart/emulator you are using and if you are using a flashcart, what firmware version.