This is not an error with the patch. This happens because the DLC Shop is region-locked to Japan.
If you wish to gain access to the DLC you'll have to buy it with a japanese 3DS and dump it so you can patch it.
If you already patched it and installed it, the DLC Shop Menu is useless to you
Hello GBATemp! :)
I have been hard at work trying to crack down animation files in Puyo Puyo games for the PSP specifically (.snc). (however the file format is roughly the same on other consoles like PS2 and Wii).
I've been told Shdow The Hedgehog uses the same type of animation format as Puyo...