Error code caldron, and I can't fix the issue even with following trouble shooting steps.

I can't sign in on Minecraft windows no matter what I do. when I try to sign in it gives me the caldron error code. I have tried to follow the trouble shooting guide but had no progress. What I'm trying to do is play with my friends and it's pretty annoying that I'm having issues signing in. I have already sent an email about the issue, but they couldn't help. I'm doing this as a final plea.