The ball hanging up at the walls/main playfield plexiglass is probably an easy adjustment. Most likely it's one allen screw, slide the adjuster a couple mm and retighten. You want the main playfield level with the tops of the walls.
If all the walls and scoops are not the same height one of them may need adjusting. Not a difficult process either.
Multimorphic probably has videos on the support section of their site.
https://www.multimorphic.com/manager/account/login/