We are using this plugin to one of our client website and we are getting some errors generating from plugin when some of page don’t have result and on 404 pages as well as in backend we are getting errors

We have website setup on below URL

http://artistsamir.com/work/wordpress/inoxihp/

For example when we are doing search in website and nothing found the error is coming – http://artistsamir.com/work/wordpress/inoxihp/?s=fasdf

Can you please check and let us know fix for it as soon as possible