Need help~! I set up my chatGPT through explore and encountered two problems

I set up my chatGPT through explore and encountered two problems:

  1. When using it, I found that there are no chat records in the dialog box, which is very inconvenient.
  2. If the document uploaded to Knowledge exceeds the 10th document, an error message indicating that it cannot be saved will occur.
    Are these two situations normal?