I need a react app fixed

I have a website builder app. I need it fixed my developer is not good, and keeps having bugs in my app. I need it fixed. UI , and some text and images just do not respond correctly in app.

I need app fixed and uploaded to app store.
You can see app here:
https://apps.apple.com/us/app/sitepro-mobile-website-builder/id1598708943

Ill pay $100 for fast coder to fix