Shea butter cream is lumpy?

I tried making a cloth diaper friendly diaper rash cream and I used raw Shea butter as the main ingredient. I used raw Shea butter, coconut oil, cocoa butter, aveeno colloidal ointment ( mixed with a little water to make it pasty) and a little bit of lanolin. Now it's been a week or so at room temp and there was lumps and mold looking stuff in it. Could it have gone bad? What ingredient could have caused it to do that? How do you store it once it has been mixed with other stuff?