I am trying to deploy a Python Flask application that uses TensorFlow for image classification. The deployment fails consistently during the build phase.

• Issue: The service shows "Service is offline" and "There was an error deploying from source."
• Project Structure: My app.py and requirements.txt are located in a subfolder named /backend.
• Dependencies: The project includes tensorflow (version 2.15.0), flask, and gunicorn.
• Repository:https://github.com/yuanasem/ulcerscan

Additional Request: I suspect the build process might be failing because the project is in a subdirectory, or because of dependency resolution issues with TensorFlow. Could you please check the build logs to confirm the specific error?