Ruby has been potty trained for awhile now. We purchased the UGODOG potty system and she went on it with no problem and has been using it without accidents for 4 months. All of a sudden in the past week she has been stepping on it with her front paws but peeing on the floor. Not every time but at least 50% of the time. There have even been a few times when she wasn't even anywhere near the potty and she peed. She gets a small treat when she goes on the potty and I see it, She always has. What could be the problem? I can't figure this out.