Out of Plus, no chat history

Well, I was using Chat-GPT plus normally, when, all of a sudden, the page refreshed, I can’t access Plus and, worst of all, my chat history just disappeared. I’d like to know if this problem happened to somebody else.

The chat history appeared again, but I can’t access plus, it says that I’m not a subscriber. Why is this happening?

It seems that it went back to normal. But these things shouldn’t happen.