buttercup86-Anyone with experience with chewing and how to stop it? I give him so many options for things to chew and the walls just win!
I have had my fair share of this, and the best thing that has worked for me is spraying perfume on the walls. Try a strong scent of something and she will most likely leave it alone. Or, if you have lemon oil in the house or can go out and buy some, I’ve used that too and it works wonders. There are those bitter tasting pet solutions you can get from PetCo or PetSmart I think has them, or online, and I haven’t tried them because I’ve had so much success with the tips I mentioned before so I’m not positive if those will work. If she’s still going after them, I would get the NIC grids and zip-tie them together against the wall leaving enough room between the wall and gate so she can’t reach the wall.
Let me know if these tips work for you, and good luck! It’s really good you’re paying attention because most likely if you live in an old house she could be chewing on lead based paint which is really poisonous for your rabbit. Also, she is most likely doing this because she’s either bored or wants attention. Try sitting on the floor next to her and she will come sniff you out and you can groom her/pet her to keep he distracted. If she won’t calm down, holding them down with one hand pressing down (NOT hard, very lightly but be firm) on their shoulders and neck almost always works unless she’s really pissed off. Hope this helps, let me know if they do 
-Hailey&Peanut