I just updated Minecraft but it still does the same thing. I also tried restarting my switch and tried it but it still says error.
I tried what Marvin said multiple times and it didn’t work for me. It happened before I updated to 1.12 and before 1.11. And I couldn’t get onto Minecraft at all so I didn’t make any worlds, buy texture packs, or log in.
That's lucky. I feel like I would be fine if it worked like that for me but I've already tried it. 😞
I found a fix for me! I went to settings >data management > delete save data and deleted my save data for all of my users. I know I didn’t have as memorable of worlds as some but it’s better for Minecraft to actually work than keep the worlds. So I suggest trying it if you guys haven’t already.