Thank you for reaching out!
We've seen some reports from other users regarding the 'undefined' issue that @pohao described.
Unfortunately, this issue stems from recent changes made to Gmail's U/I.
We are aware of the issue, and are currently working to address it as quickly as we are able.
In the meantime, you should be able to switch back to the old Gmail U/I and use the web clipper as a workaround solution until this issue has been fixed.
I'll follow-up o