That's new. It corresponds to the case where it cannot create or open SQLite database in the folder that you allocated. Its either some problem with the file permissions, my bug, Qt bug or combination of these. Let's try to track it down. * If you go to the allocated folder and try to create subfolder, does it work? Do you have permissions as user "nemo" to do it? * Close OSM Scout Server, go to the allocated folder. Do you have "files.sqlite" in that folder? If you have it, delete this file and start application again. * If it all fails, please try to allocate folder just in /home/nemo . Like /home/nemo/Maps.OSM I assume you used some regular filename, without äöõ or some other fancy character in the path. If we are still in trouble - let me know version of your SFOS, where did you try to allocate it. Please also open then new issue at github and paste the configuration file for OSM Scout Server from /home/nemo/.config/harbour-osmscout-server/harbour-osmscout-server.conf Please let me know how it went.