Perhaps fill the gap with silicone?
Or yes, replace it. I like these hides. They're really easy to clean. I cover them with fake foliage to hide them a bit.
https://www.amazon.com/Pangea-Reptil...1742887&sr=8-1
https://www.amazon.com/Zipefy-Reptil...64BQH6VX3J02NE