Fix Flutter App UI Bugs

I'm looking for a Flutter developer to fix minor UI bugs in my Egrocer app purchased from CodeCanyon. The app is already set up; I need help with:

- Navigation issues
- Notification errors

Ideal skills and experience:
- Proficiency in Flutter
- Experience with CodeCanyon apps
- Strong problem-solving skills
- Attention to detail

Please share your relevant experience and estimated time to complete.