Hello I have a problem with lack of resources with first app

hello Im elementary school teacher first time I made a first ai app for science howerver I have a some
problem

I have a problem with lack of resources
I use the webcam
this is my site:
https://choimin1243-first-ai-python-main-xfe0dd.streamlitapp.com/

and this is my github:

could you tell me what was wrong?
what was wrong?