2018 Keystone Bullet Crossfire 2200BH

[Wisetraverls4]

can't figure out how to create a new post, so I am improvising. We have had our TT for a little over a year-haven't had a chance to use it much, but hoping that changes soon. This Fall we have had issues with the screws holding 2 cellular window shades to the wall pulling out from the wall. Of course when that happens, it is impossible to screw them back into the wall and get them to hold. What can we use to fill the holes so we can screw them back in? Not sure a wood filler would work, so I am looking for suggestions. Thanks in advance!!