Hello, @sushil.vispute . . . he may have dirty cliff sensors. I would advise you to try cleaning them.
If this does not help, my next advice would be to get video of the issue and contact Support either at service@living.ai or through the Support page here. Just remember to be patient as sometimes replies can take a little bit. Be sure to also include your order number since he is under one year old.
My best to you!