When you run into a bug or other issue with Lifeline, it's helpful for us if you can include debug data when you contact us. You can do so by following these steps:
Hold down the option key and (left)click the Lifeline tray icon.
Select Developer options > Collect debug data.
Click "Open Terminal" in the popup that appears.

Press cmd + V simultaneously, then hit return.
Wait 10-15 seconds until the Terminal window looks somewhat similar to the below screenshot.

Go to your desktop where you should find a ZIP file named Lifeline_{date and time}.zip, for example Lifeline_2021-09-23_14-40-38.zip.
Include this file in your correspondence with us.