Considering the size of the size of the enclosure, the size of the snake and the fact that it is a male I am not surprise that it is not eating.
Downsize drastically get your temps where they should be and try again.
I will advise against it, while I know that many breeder do it, it is wise to keep in mind that toads can carry crypto which is fatal to hognose.The only thing I haven’t been able to try is toads. I don’t have access to them but someone did suggest soaking the mice in water from the local pet stores frog tank.
When having issues with hognose feeding or trying to start stubborn babies there are many scent that can be used, vienna sausage, tuna, chicken, sardine, anchovies, get the juice out of any of those out of the can and keep those juices in the freezer (thawing and freezing as needed) , hard boiled egg is also another option.