I had this app installed and working till yesterday.Now it won't launch even after uninstalling and reinstalling Palapeli version 4:17.12.3-Oubuntu Source ubuntu-bionic-universe OS Ubuntu 18.04.3 LTS Memory 15.6 GiB Processor Intel® Core™ i7-2600 CPU @ 3.40GHz × 8 Graphics AMD® Redwood GNOME 3.28.2 OS type64-bit Disk 490.1 GB
Your palapely is terribly old, nothing we can do to fix something that is already fixed since last october. Maybe you can use palapeli via flatpak https://flathub.org/apps/details/org.kde.palapeli meanwhile *** This bug has been marked as a duplicate of bug 398416 ***