Today we have release Fred2 2.0.1 that fixes a couple of small errors in the Fred2 2.0.0 release.
Fred2 2.0.1 is available for download at: https://github.com/FRED-2/Fred2/releases/tag/v2.0.1
or can be installed via pip with: pip install git+https://github.com/FRED-2/Fred2