I'm in the same boat. Clipper just stopped working one day and no matter what I do it just doesnt seem to want to come back. I don't have the time to be constantly troubleshooting this. I just need a fix or I'm out. Has anyone found any other solutions which might solve it for me? I'm on Safari 11.0.3 and Evernote 6.13.1 and clipper 6.13.2.