I'm drowning in chatgpt error

From German time Feb. 3 10pm., I have encountered numerous error messages(There was an error generating a response), and after GPT-4 finishes generating content(I can see all the content), refreshing the page, then I found that the content either disappears or is partially missing.
As of now, I’ve encountered both at least a couple dozen times. This piece is driving me crazy. It burned me a lot of the cap usage limit:(
One more thing, I can not upload pdf file now, but image still work

Feb. 5, 7.27 pm. update: chatgpt even not response me now. I asked a question, it just output nothing, I’ve tried 3 times