Plugin is not translation ready?

Improve Elementor Addons & Templates – Sizzify
Translating Elementor Addons & Templates – Sizzify into as many languages as possible is a huge project. We still need help with a lot of them, so if you are good at translating into Russian, it would be greatly appreciated. The process is easy, and you can join by following the link below!

I clicked ‘Ok, I will gladdly help’. But the link was broken. I searched, and all I found was this plugin with this note:

This plugin is not properly prepared for localization (View detailed logs on Slack). If you would like to translate this plugin, please contact the author.

Strange…