Hey there sorry for late respnse. Simply change your wp-config DEFINE_LANG section to your language for example it_IT and change your language in to the wp-admin to Italian.

Also there is not it_IT po language included the theme and you should translate the theme languages files to your language. \cosmos\languages\ simply dublicate the en_EN.mo and use poedit and translate it into your language and use it as you own language.

I hope this helps to you. Also We’ve replied your email but I think you’ve never got it.

Regards
Kevin J.

Here is the working demo on https:// https://wp.themeofwp.com/elegantmegaaddons/video-carousel/

You can download it from codecanyon again it was approved.

Hey please deactivate and delete plugin first and then install latest version of the plugin again. Then Please check the video sources Editor’s text mode. They should be read from https:// if not please change all http:// to https:// if you are not able to edit them please send us your login info we’ll correct it for you asap.

You can contact with us via info@themeofwp.com also do you have a site using currently with our theme? Where did you purchased and where you are using it currently now?

Thanks!
Kevin J.