If you are getting errors with this mod ideally report them on the github issue tracker at https://github.com/DoctorVanGogh/ModSwitch/issues

If that does not work for you, feel free to report them here on steam, but please try to supply as much information as possible.
That means uploading the following files somewhere:

from the game's log directory (you can easily navigate there using the ingame options, then the "Open log folder" button in the center column).
Also please upload your
(when using steam)
or
(when using a local install of this mod)
settings from the Config folder inside the above mentioned log folder.