That diet is inadequate. The staple food should be earthworms, and for variety you can offer every now and then, the crickets, isopods, slugs, waxworms...
Don´t give them mealworms they are a very poor choice since they are very lacking in nutrition, hard to digest and can bite causing damage.
Make sure you are offering perfect conditions, if they are adult then they are wild caught and likely to be extremely stressed or even ill, so perfect housing is a must.
How long has she been off food anyway? They can go for long periods without it having a negative effect.