My Sinister peed his cage like that. I took him to the vet and he had a UTI. It is unusual for a male to have a uti but it can happen. After he finished his antibiotics, I now give him 2 tbs. braggs apple cider vinegar on his dog food everyday to keep bacteria at bay. Take your pup to the vet just to rule out a UTI . Also if you provide them with a blanket they are more likely to soil their crate. So nothing in the crate with your puppy. Take outside on a leash every time to guarantee he goes and praise. Act a fool with excitement and give lots of treats. I always mark it, Yes good potty!! Give treat. Good luck!!
Athena- Long Coat GSD -CGC
Sinister Black- GSD