Airsonic was started at around 8:30
Jul 09 08:30:21 DietPi Airsonic
And still loading at 8:37 where your log stopped
Jul 09 08:37:20 DietPi Airsonic[495]: 2024-07-09 08:37:04.144 INFO --- o.a.p.service.PodcastService : Starting scheduled default Podcast refresh.
I guess you system is heavily loaded and your apps taking long time to complete startup. You should be able to watch system resoruce consumtion using htop