I’ve got a similar issue, and it normally only last about one or two minutes.
Full log: https://www.cnx-software.com/html/xibo-player-crash-log.txt
Details about my installation: https://www.cnx-software.com/2019/04/02/minix-neo-z83-4u-ubuntu-18-04-kodi-18-xibo-digital-signage/#xibo-digital-signage-on-minix-neo-z83-4u-mini-pc
I could share the layout but I’m not sure how to do that yet.