Hello @Indranil_Mallick,
Since you made a huge jump from 0.60 to 0.69, my guess from the logs is protobuf
did not get upgraded correctly (I got this issue around Streamlit 0.64)
Could you try reinstalling protobuf :
pip uninstall protobuf
pip install protobuf
(You can also follow a more detailed procedure here)
Cheers,
Fanilo