Can’t deactivate offline modus

Hi,

I installed the site offline plugin and created my own design. I activated it and saw that it did not work for all my pages. The homepage and the contact page were still visible. So, I tried to fix this, but I couldn’t deactivate the offline mode. I deactivated the plugin, deleted it but the offline mode is still on for some pages. I can’t change this, while I tried many things. I already tried to delete the cashes of my wordpress, my safari and my Google Chrome. I hope someone can help me with this, because I want all pages offline or online, and not just some pages. At the moment, the site is partly online and this is not what I want.

The page I need help with: [log in to see the link]