App review delayed for last 42 days

Our apps updates are not getting the timely review and continuously remains in “content review delay” since Jun 2024. No valid reason has been shared with us for these app review delays. Again our following app is is in content review delay status without any reason. What we do wrong that our apps are not getting the app review on time. We are severely suffering from these delays review, please suggest what we do n this case. Our App review is still not completed for last 42 days.