My ML salary predictor works locally on streamlit but when i deploy on streamlit it gives data leakage issues [closed]

I do not know man, a Full fledged project done in university, i first sticked with my teacher's notebook but then it was not working so i ai generated a whole ML pipeline, then pkl file and then app.py and deployed to stream lit, the app works locally but not when I deploy, if someone can help me it would be very helpful.

Git hub repo : - https://github.com/dat1aryan/Salary-Prediction-System