Looks like the site was previously paused for monetization due to the site being down or showing an error during the initial review. I've gone ahead and had your site reviewed again and the site has been successfully integrated.
Please note that you will need to further work on the navigation bar of the site if you wish to fully monetize and pass the Google Ad Manager review. It is important to break down your content into categories and organize your site so that it's easy for your traffic to move through the content.