Project M Not Launching

[Lord Boss]

I wanted to play Brawl to check out my skills since I stopped playing, and then after one or two rounds, I wanted to go back to playing PM. I launched PM in Stage Builder like one normally does it, and then it shows the "Twilight Hack," "Cleaning up environment" stuff (like it always does), but it doesn't move on from there. It says at the bottom, "gecko not found" and stuff like that. I've turned my Wii off and back on, took out the SD card and replaced it, did both of those two steps in conjunction with each other, and then tried to see if there was anything wrong with the SD card by plugging it into my computer. The card didn't open. What's going on?

Main problems:
-Apparently Gecko OS wasn't found, so PM won't launch.
-The SD card won't show any files on it.

 

[Lord Boss]

Also, at the Wii menu, when I select the SD card thingy at the bottom left side, it says that "the device inserted in the SD Card Slot cannot be used."

 

[Lord Boss]

I fixed it! my Chromebook prompted me to format the SD card, and so I did. I just re-downloaded PM.