Sticky menubar located at upper right corner

Good afternoon, I am using the PRO-version of Catch Kathmandu. I wanted the menubar to become sticky at the top of the screen. So i installed the plugin "Catch Sticky Menu). That works, but the menubar is not centered (falsely located at the upper right corner).... How can i solve that with CSS-code? Our website: Htpps://www.lemsterpoort.nl It would be nice if i could also make the logo Sticky. Kind regards, Hanno