The All-in-one Video Gallery plugin is 100% translation-ready and compatible with WPML. Since WPML is a premium plugin, alternatively, you can also use the Polylang plugin. This document will help you create a multilingual video gallery website using the Polylang plugin for free.
The main goal of this document is to educate on how to use the All-in-One Video Gallery plugin with Polylang. So, we don’t go through the steps of installing & configuring Polylang. We would suggest checking their official Polylang documentation for these instructions.
Note: Kindly follow the instructions below in the same order this tutorial is written.
1. Configure Videos, Categories & Tags as translatable
Assuming that you already have the Polylang plugin installed and set up on your website. Then, the first step is to enable our plugin’s post types and taxonomies on the Polylang plugin’s settings page.
Navigate to “Dashboard / Languages / Settings“, locate the “Custom post types and Taxonomies” section, click on the “Settings” link, select “Videos (aiovg_videos)“, “Video Categories (aiovg_categories)” & “Video Tags (aiovg_tags)” options, and click “Save Changes“.

Now, Polylang would add “+” icons in our plugin’s Videos, Categories, and Tags pages to translate them to the other languages on your website.
But, before start translating the videos, we need to translate the standard WordPress pages added by our plugin during the installation and also the Categories & Tags.