P2723QE, MacBook Air, flickering after a Zoom call

The P2723QE display does not stop flickering after I attended a Zoom call where I joined in from a browser. My P2723QE is connected to a MacBook Air with a USB-C cable. The cable is new and the power source is also working correctly. I have tried reconnecting both the USB-C and the power source but nothing works. I got the P2723QE last year through my company. Please help! I need a monitor to work from home and it is kind of a deal breaker.