Hello!
Do you still encounter that same error message? Please try the following:
[1] refresh screen and check if your post/s were published/saved - Sometimes posts get published even if you encounter the error/s.
[2] clear cache
[3] change browsers
Usually that error appears at random. Waiting for a few minutes and repeating the post sometimes helps. Also, check if your internet connection is stable. Slow connection sometimes contributes to this error.
Hope this helps.
If the same problem still persists, please email
support@hellokitty.com and send the complete details of the problem and the screenshot of the error message.