Check if the actual litter you use is correctly set on LavvieBot’s litter type. 2. Check “Litter Level Set-up/Current” on the IoT screen of your app. Litter level is set low, thus increase your litter level. ① Check if there is enough litter in the litter storage. ② If there is enough litter, take out the litter entrance net and take a moment to see if LavvieBot refills automatically when the litter gets decreased. ③ If both a and b do not work, please contact CS team.