Pokemon Explorers of Time Not working

I downloaded it just now and when i go in to the menu and selct the game it just says "loading" forever and never loads, any help?
thanks :D -Jakeusprimee

Cart and firmware?

If you have a R4 you can download YSmenu
http://www.gbatemp.net/index.php?showtopic=97615

Backup your files and reformat your MicroSD.