Trouble loading PyRevit

Hi everyone!

Within our company we are implementing PyRevit as a tool to distribute scripts to al BIM modellers. Today I got a message from one of our colleagues that PyRevit has trouble loading when he opens up Revit and that he gets an error (PyRevitLoader - Error Loading PyRevit).

I am not exactly sure what I am looking at when i see this error. What can I do to resolve this issue for my colleage?

Thanks in advance!
Kind Regards,
Bob van der Hall