Hi @djshan1979, thanks for getting back to me 
I was able to fork your repo and successfully deploy the app on Streamlit Sharing after adding a packages.txt file! Here are the contents of both the files:
packages.txt
freeglut3-dev
libgtk2.0-dev
libgl1-mesa-glx
tesseract-ocr
libtesseract-dev
libtesseract4
tesseract-ocr-all
requirements.txt
streamlit
opencv-python-headless
textblob
scipy
numpy
pytesseract
nltk
pandas
scikit-learn
Your repo seems to be missing packages.txt. Adding the above 
packages.txt file, in addition to replacing opencv-python with opencv-python-headless in requirements.txt worked on my end.
Lastly, for pytesseract to work, you need to install the tesseract binary via packages.txt and replace line 19 of your scorecard_generation.py with:
pytesseract.pytesseract.tesseract_cmd = r'/usr/bin/tesseract'
Let me know if you’re still running into the same error after making these changes 
Happy Streamlit-ing! 
Snehan