Seems to work for Legion
https://www.wowinterface.com/downloads/info6681
https://github.com/TekNoLogic/tekErr
A simple error manager. When an error is caught it will blink a small minimap icon to inform you. Clicking the icon opens a panel listing all errors. Clicking an error shows a full stack trace, handy to copy/paste into a bug report.
You can also access the panel via an LDB launcher or by typing /err or /tekerr




