Do you have the push notifications turn on?
High trade turnover.

Our friend at robosats explain it very well in this great article:
“In the case of RoboSats, we have seen that many new users will only check the order book at that specific moment and very often assume weak liquidity, but they do not realize that untaken orders expire in 24 hours and successful trades are not visible. The trade turnover is actually quite high and orders get taken relatively quickly. Interestingly, behind the apparent lack of liquidity is a highly-liquid market.”

https://bitcoinmagazine.com/culture/the-value-of-p2p-bitcoin-exchanges