R4 Gold pro 2013

Hi Guys,
I bought a r4 gold pro on 2013 and it worked perfectly on my DSi ... until today. I didn't do any update on my DSi but I did one on my r4. There was a little japanese boy for the game but it had changed in SpongeBob Atlantis something... And when I put it in my console, it says an error message ! I don't know what to do, can anybody help ? (sorry for my bad english)

It could be that you had updated that 2013 Pro R4 with the file for 2015 Pro R4, which might not be compatible with yours. Which results to the cart now blocked from working on the DSi. Only solution is to revert it back to the old firmware/kernel. That is if you have a copy of the original file, or the website still has it. Else, no idea.