I really do need to use hummingbird to combine / minify CSS and JS plus i need to move som render blocking items. The problem is Hummingbird busts the site when i scan the site and open the facility to do this? Could you pls take a look at the site and see why this is happening as I really do need to do this work and I cant have a busted live site when i use this facility within Hummingbird. Look forward to your reply. I have enabled you to be able to access the back of the site.