Geoprocessing tools no longer work

[CyrusBlankinship]

Whenever I attempt to use a geoprocessing tool I get an error saying "Tool has failed to open". For example, when I attempt to run the excel to table tool, this comes up

Not sure if a path is broken or what, but it is incredibly frustrating. When I try to run the tool in the Python window, Pro crashes. 

[ClintonDow1]

Thanks, seems like there's some issue with the extension in rare conditions, I'll investigate some more.