App shows blank screen when continuously used

I am testing a kiosk Android application. This is a food-ordering kiosk application. The device's RAM is 8GB. The flow of the application is: The user comes to the app. At first, the banner video is playing. The video duration is variable. It can vary between 4-15 seconds. The user clicks the app to go inside, add items to the cart, and place the order. After the order is complete; it again redirects to the banner video screen. Problem: This process will keep happening all the day. The kiosk is never off. After 3-4 days when it's on its video gets paused; a blank screen shows and nothing happens. However, when the app is closed and reopened, it starts again. I have tried all the ways to find out why the screen goes blank and the video doesn't play. I have two kiosk machines with Android 9 and Android 13. Both have the same issue. These are MicroTouch's IC-series kiosks. Is it taking resources that get filled when used for a long time and filled? The player used by the dev is Exo Player. Is there any possible way to find out the exact reason why it's happening? I tried using it for a whole day. Kept it on for 2 days, but I didn't track the issue. We only face this issue at the user site where these kiosks are installed and when continuously used for 3 or 4 days.