Site not 100% although defined?

A site I am working on does not fill the screen on iPad Pro and Small Laptop screens. I have set the site container to 100%, but there is still a gap to the right?

http://79.170.44.103/113events-temp.co.uk/

I think the problem happens because of meta slider. When i delete it, the web page works fine to fill the screen on iPad Pro and Small Laptop screens.

Before, with meta slider activate;
http://i.stack.imgur.com/Ma8ra.jpg

After, with meta slider deactivated;
http://i.stack.imgur.com/DmoF4.png

Help would be appreciated

https://ww.wp.xz.cn/plugins/ml-slider/