r/Minecraft3DS

This is my first n3DS MC world (I literally bought this 2ds just to play this a week ago haha) and I was being very lucky! I found 2 villages, 2 spawners, a mansion (without evokers), 2 nether fortresses...

But then I went to the stronghold and the portal seems to be gone, I suppose that other room generated on top of it and removed it

Is there more than 1 stronghold per world, or am I fucked?

This is the first time I kill the Ender Dragon it was difficult but really fun :p

I downloaded some new mods from the Unistore and when I re-entered the game all the DLC content wasn't available, my worlds were gone and every time I try to create a new one it says "it's corrupted and can't be saved"

When I use the "Home" button it has a "generic error" and crashes :(

I already uninstalled all mods and even the game but I still can't create new worlds, what should I do????