App runs fine on debug mode but when releasing on Play Store force close Flutter

It's been almost two weeks, I released my app Food Today on Play Store and App Store and I created my landing page too using firebase hosting foodtoday.ungapps.com . It's quite fun to do everthing with firebase and flutter. It's like creating start up. I still need an idea to improve this app better again. I have an expierence where I need to analayze my code that's on Play Store. Because the error only happened when I installed my app on Play Store. Fortunely I can check my app internally through Play Store developer. So I didn't need to release it to play store because It will much time waiting to be reviewed. Now I've been waiting my app reviewed, It's almost two days. I think it's my first time waiting my app to be reviewed for almost more than one day. The update that I did is to add ML kit feature to detect food when user is trying to add food photo in discover food. Updated now it's been updated on Play Store. I usually write my blog a few d...