Shiftnav No Longer Styling

Hi
Shiftnav has been working great until I accidentally renamed the wrong theme file and now this happened, https://gorealesite.com/account/ its seems to be the styling for the different tabs disappeared.

I went back changed the theme file to its original name, tried reinstalling the plugin, changing to different themes, plugin conflicts, and even rewriting in the options database, but still can’t seem to get the tabs back.

Any ideas on whats causing the tab styling not to show?

https://www.ads-software.com/plugins/shiftnav-responsive-mobile-menu/