[Plugin: Events Calendar] permalink Error (when contains Chinese)

Yes, whenever I post an EVENT and if the title contains chinese character. The permalinks will automatically set to have Chinese character too (cause /%postname% ) . So after making an event post, and I try to click that “event” to read details, an error occur.

I could solve this problem by re-edit the permalink (remove the non-English character) each time , but it’ll take lot of time. Don’t know why even I set the POST permalinks format to be /%date%, when it comes to EVENT posting, the permalinks format still is /%postname% ???????