Bathroom sliding door rubbing wall

[2018 Fourwinds 31Y]

The wall panel on the exterior of the bathroom that is covered when the bathroom sliding door is opened has totally came detached in the middle and door edge. The bathroom door is now taking off the finish of the wall as it is rubbing it every time the sliding door is opened and closed. Does anyone know how to remove the door so I can get to all of the wall and try to get it stapled back in. Any ideas? Sorry it loaded the pics sideways...

[Bob Denman]

Welcome to the forum.
Generally speaking: sliding doors are lifted off their tracts...