Hi there,
1. That gap can be removed by using the “Full Width” option: https://docs.generatepress.com/article/page-builder-container/
That option can also be used on a global scale using the Layout Element: https://docs.generatepress.com/article/layout-element-overview/
2. It’s not showing because you’re using lazy loading, which uses javascript. The javascript isn’t working because you have a javascript error on the page. If you right-click + Inspect, you’ll see the error in the “Console” tab. You might need to deactivate your plugins one by one to find the culprit.
Hope this helps ๐