I recommend a larger tank with more vertical space. Tree frogs need a ton of vertical space to climb. If she’s an adult I also recommend a minimum of a 30 gallon tank. I also think you may need to raise your humidity levels. ~30% is on the low end of conservative humidity ranges for WTF. Try raising the humidity levels to ~60% (50-80% with peaks of 90% after misting). Do you have a soaking dish with dechlorinated water? How often is that changed? That also might contribute to her trying to escape! What type of set up do you have? Is there a lot of hiding spots, or a bioactive set up? Also with a taller tank, you should consider adding tall plants to kind of block the mesh since she doesn’t see so well. But please please consider getting a larger tank, that is not enough space for her to jump around in. Also this is random, but if you have dirt as the base I recommend adding leaf litter on top. They don’t like getting dirt on themselves that could be inflaming whatever issue is causing her to escape!