Cannot import any installed package

I was getting errors with some packages, so I reinstalled them.
My notebook suddenly cannot import any package. The error message is ModuleNotFoundError: No module named ‘xx’.
The only thing I did was reinstall several packages and now Jupyter cannot import anything at all.
All the package has a prefix of “100”, I have no idea how it happened. Is this the reason why Jupyter is unable to import any packages?