disappeared button "close" in gallery image

Which theme is this? Also should there be a ‘close’ button – is this a plugin or what?

hi.
this is Gridsby-wp theme
i don’t know whai is ‘close’ button. there installed with theme

Hello,

It looks like the following error is appearing when loading your website:

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://froggy.bplaced.net/portfolio/wp-content/themes/gridsby/fonts/fontawesome-webfont.woff2?v=4.3.0. (Reason: CORS header ‘Access-Control-Allow-Origin’ missing).

This is more than likely a privacy setting with your hosting provider in which the font-awesome icon library is being prevented from loading. You will have to reach out to them and have them change to allow for this.

Thanks!