Menu is sticking but bonces to the left

First I would like to thank you for the plugin. I’ve been looking for something like this and all the solutions were too complicated for me. Thank you!!
The plugins is working well. The menu is sticking on the top of the page when I scroll down. But the whole menu bonces to the left and the right part stays without menu. outofyourcomfortzone.net/

Thank you again for the help!!

https://wordpress.org/plugins/lowermedia-sticky-js-menus/