there is more to this error message ... there has to be.
If need be, trigger uber mode and enable debug view and try again. then take a screen capture of the error state.
Trigger Uber As System Admin > About > Crtl+u > enable debug, clear cache, click OK.
reproduce, capture error
Disable Debug as System Admin > About > Crtl+u > disable debug, clear cache, click OK.
Do not run in debug mode for anything other than troubleshooting.