Joomla Free extensions

I installed the mod but then when i click on the mod to set it up all joomla menu goes away i gave it 3 reinstall tries but the same problem came up every time.

Any thoughts?

Hi Timmy Olsson
Thank you for using our products.
We have checked your orders and your have purchased extension JO Facebook Image Grid. And this extension using for component JO Facebook Gallery. So you need install JO Facebook Gallery in your site
Can you see extension here: www.joomcore.com/commercial-extensions/c.../jo-facebook-gallery
Can you see the guide install and config component JO Facebook Gallery in package your download and if you want we will help you install and config component in your site
Thank you for using our products
Best regards
Bach Pham