WPRM causes horizontal scroll bar

Hello!

My website (www.bestdayever.nl) shows a horizontal scroll-bar at the bottom of every page (on desktop, not on mobile). This seems to be caused by the WPR Menu plugin (inspection shows it’s caused by a div called “wprm-wrapper”). Turning off the WPR plugin also makes the scroll bar go away instantly.

Of course I would prefer not to have an unnecessary scroll bar at the bottom of every page ?? I have tried to solve it with a bit of code / CSS, but so far have not been able to without loosing functionality. Any help is much appreciated.

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