I have actively checked everything but cannot find the fault. I have owned a petkit pura max for 2 months now, and have always had the automatic cleaning active, but recently when my cat goes to the toilet, he does not see that there is anything in him, it is not measured and on the app it says that the cat has not been to the toilet, I constantly have to do the manual cleaning, which greatly affects the reliability of the device, what could be the reason?