Resolve StackFood Flutter App Errors

I'm seeking an experienced Flutter developer to help resolve configuration errors I'm encountering while working with the CodeCanyon StackFood Flutter app. The admin panel is already configured, but I need assistance in building the APKs for the User and web, Delivery, and Restaurant apps.

Key Requirements:
- Troubleshoot and fix configuration errors during APK build
- Ensure proper integration of Firebase services: Authentication, Firestore Database, and Cloud Messaging
- Implement Firebase OTP and Google Sign-In
- Update app logos as provided
- Prepare the apps for deployment to the Google Play Store
- Provide complete source code configured and runnable in Android Studio for verification

Ideal Skills and Experience:
- Strong proficiency in Flutter development and Android Studio
- Experience with CodeCanyon app templates, specifically StackFood
- Expertise in Firebase integration and troubleshooting
- Familiarity with Google Play Store deployment process
- Good communication skills and ability to provide clear instructions for verification

I look forward to working with a skilled freelancer who can help me successfully deploy these apps.