Css not working only for Ultimate Member

For some reason I dont have css styles for this plugin. All css for my site is there, but nothing for plugin or some minimum styles.

Is this problem related for free version of plugin or something on my site is breaking the css?

Its not only members page… All of the plugin pages have the same problem. But I think this is the only page that all of users can see right now.

Hope someone has the answer for this.

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