[Plugin: Search Everything] Highlight Search Terms generate:?

Hi there,

Thanks for the plugin, it’s a great one!

Just a bug I noted when I activate “Highlight Search Terms” option;
It replaces the character ? with ??
Check it out here: https://www.amawal.net/?s=Taman
It is a strange one because if I search for the full word, it shows correct:
https://www.amawal.net/?s=tamana%C9%A3t

I taught it was related to the browser, but I tested it on safari, chrome, FF, IE and outputs the same bug.

Thanks

https://www.ads-software.com/extend/plugins/search-everything/