I had a problem editing KeJie's homepage that the phonetic alphabet could not be recognized correctly. Although I did not change the content, there was a scramble for coding or platform reasons something else that I can't recover it. Editors with relevant permissions should roll back versions to versions earlier than today. Sorry for the trouble.
Done. No trouble at all. Thanks for letting us know there was a problem.
For future reference: if you're logged in, then you can do this sort of thing yourself. Instructions at reviving pages.