Getting this error, seems to occur randomly, cannot recreate. Will pop-up a handful of time a day.
1Password Version: 6.8
Extension Version: 4.6.6
OS Version: 10.12.6
Sync Type: Not Provided
I'm sorry about the difficulty.
That error message is referring to the auto-submit script which is installed by the Mac App Store version of 1Password. It's a very simple script which simulates pressing the 'Enter' key after the 1Password extension fills your login information on a website.
You can try switching to the download of 1Password from our website, instead of the one from the Mac App Store:
This version does not use that script.
Alternatively you can try deleting the auto-submit script to see if that solves the problem. Even without that script, 1Password should still be able to automatically submit login forms on many (if not all) of the sites where you have logins. Here are the steps to remove that script:
Does that help? Let us know how it goes and if you have any questions about that. Thanks!