3DS eShop crashing console (no error code)

This weekend, I was able to use the eShop just fine but on sunday or monday, my console auto-deleted my Smash Bros demo and would start crashing when I tried to get into the eShop using my 3DS. I can still access eShop on the Wii U but every time I try to get on with the 3DS, my console crashes, giving no error code but telling me to visit the support website. My 3DS is the first generation, standard sized, Aqua Blue. I seem perfectly able to access the web browser too, it's just the eShop that crashes my console.