Problem in running !python app.py

I followed every steps. Run each cell one by one. In between i got stuck where !ldconfig threw an error of libmkldnn.so.0 is not a symbolic link. So I deleted  libmkldnn.so.0.14.0 and then it was fine. Now I got stuck at the last script. It is throwing new errors after resolving some import issues. Kindly revert back.
Thanks.