Owlet monitor keeps going off

Has anyone had this issue? It went off 7 times last night saying difficult to get reading and flashing yellow. It’s been happening the last couple of weeks a lot. Before that I never ever had it go off once.

If I go in and check the monitor is on properly usually it’s because bubs turned on his side to sleep and I have to move him back on his tummy or I unplug it at the wall and plug it back in.

I don’t know if it’s because he is getting bigger he is almost 10 months and moving lots or because it’s just becoming faulty?

I’m not ready to stop using it 😭 it’s the only reason I’ve been able to sleep for the last ten months but seriously 7 times a night is too much.