Homebrew After installing game from freeshop system wont turn on

[jonipipi11]

So, I installed freeshop yesterday, downloaded and installed pokemon moon, when I started the game, the screen went black and stayed that way, so I turned the system off, but now when I try to turn it on the blue light just flashes for a couple seconds and nothing happens

 

[Drakia]

Your SD card is probably for l corrupt. Try backing up the files on it and running a hardware test on it on your PC

 

[Super1710]

I had similar issue where my 3DS randomly had issues turning on, but turns out it had nothing to do with the SD card. I just removed the SD card, turned the system on and back off, inserted the SD card, turned it on, and it worked properly afterwards.