[Plugin: Twitter Widget Pro] Accents not showing correctly

I ran a quick test over at https://webdevnews.net and it looks like the accents are displayed fine: https://cl.ly/image/0K3n2i0B0f13

Maybe your theme doesn’t use the UTF-8 charset or maybe it uses a font with a limited set of characters?

That’s not my site…

The site Im trying to use it is this:
https://www.ciudadanarquia.org

I know that wasn’t your site (it’s one of mine). I was just trying to show you that the plugin DOES handle accents.

Looking at your site it looks like you’re using the ISO-8859-15 char set, which doesn’t support all accented characters. In WordPress admin go to Options->Reading and change the encoding for pages and feeds to UTF-8 and it should fix your problem.