Idea? Bedmesh is completely off world

Hello Together I have been trying to set up my BedMesh for a few days now. Unfortunately without any success. The Youtube video of Marc have seen. According to this, I would have to go up at the front. If necessary, the back down. Unfortunately, I can not further down the back and the front also not further up, otherwise I can no longer mount the panels. I already had a nice mesh here, but not for a while. Does anyone have any ideas?