Created attachment 128932 [details] This is the message that is shown every time I entry to Discover in my lubuntu. SUMMARY STEPS TO REPRODUCE 1. 2. 3. OBSERVED RESULT EXPECTED RESULT SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: lubuntu 19.10 LXQt About Version 0.14.1 (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION
Seems like you added a repo without adding its signing key. If you do that, the error message should go away. Beyond that, all we can do is present the error in a more user-friendly manner. See bug 403791. *** This bug has been marked as a duplicate of bug 403791 ***