Hi, sorry to hear about that, we advised you already as I said you need to find out his weight and also weight his usual portion of pellets to find out if he's getting too much calcium from pellets or just from kale. Because both pellets and kale contain calcium and you need to calculate how much pellets he can have daily.
We can't see what is the problem with his skin so we can't advise on that but those two issues may be not related at all.
If you don't have scales at home maybe you can bring him to a post office or some veg market and ask if they will let you use their scales, but we just need to know his weight to calculate his daily portion, maybe you feed him too much pellets and he is getting too much calcium from them.
May I ask if this urine is healthy for a high calcium urine? I know it's really dark thick yellow. Is this sludge?