Random Crashes, Ubuntu 14.04

Sonarr has been randomly crashing for a while now without reason. Half the time there’s an error in the logs and the other half there’s nothing. It’s like it just halted and quit but theres nothing in the logs I can find

15-6-13 10:43:06.8|Trace|ConfigService|Using default config value for 'removecompleteddownloads' defaultValue:'False'
15-6-13 10:43:06.8|Trace|EventAggregator|Publishing TrackedDownloadRefreshedEvent
15-6-13 10:43:06.8|Trace|EventAggregator|TrackedDownloadRefreshedEvent -> QueueService
15-6-13 10:43:06.8|Trace|EventAggregator|Publishing QueueUpdatedEvent
15-6-13 10:43:06.8|Trace|EventAggregator|QueueUpdatedEvent -> QueueModule
15-6-13 10:43:06.8|Trace|EventAggregator|QueueUpdatedEvent <- QueueModule
15-6-13 10:43:06.8|Trace|EventAggregator|TrackedDownloadRefreshedEvent <- QueueService
15-6-13 10:43:06.8|Trace|CommandQueueManager|Updating command status
15-6-13 10:43:06.8|Trace|Owin|
15-6-13 10:43:06.8|Trace|Owin|SQLite error (5): database is locked
15-6-13 10:43:06.8|Trace|Owin|

15-6-13 10:43:06.9|Trace|EventAggregator|Publishing CommandExecutedEvent
15-6-13 10:43:06.9|Trace|EventAggregator|CommandExecutedEvent -> TaskManager
15-6-13 10:43:06.9|Trace|TaskManager|Updating last run time for: NzbDrone.Core.Download.CheckForFinishedDownloadCommand
15-6-13 10:43:06.9|Trace|EventAggregator|CommandExecutedEvent <- TaskManager
15-6-13 10:43:06.9|Trace|EventAggregator|CommandExecutedEvent -> TaskModule
15-6-13 10:43:06.9|Trace|EventAggregator|CommandExecutedEvent <- TaskModule
15-6-13 10:43:06.9|Trace|CommandExecutor|CheckForFinishedDownloadCommand <- DownloadMonitoringService [00:00:00.0438740]
15-6-13 10:43:36.8|Trace|Scheduler|Pending Tasks: 0
15-6-13 10:44:06.8|Trace|Scheduler|Pending Tasks: 0
15-6-13 10:44:36.8|Trace|Scheduler|Pending Tasks: 2
15-6-13 10:44:36.8|Trace|CommandQueueManager|Publishing CheckForFinishedDownload
15-6-13 10:44:36.8|Trace|CommandQueueManager|Checking if command is queued or started: CheckForFinishedDownload
15-6-13 10:44:36.8|Trace|CommandQueueManager|Inserting new command: CheckForFinishedDownload
15-6-13 10:44:36.8|Trace|CommandExecutor|CheckForFinishedDownloadCommand -> DownloadMonitoringService
15-6-13 10:44:36.8|Trace|CommandQueueManager|Marking command as started: CheckForFinishedDownload
15-6-13 10:44:36.8|Trace|CommandQueueManager|Publishing DownloadedEpisodesScan
15-6-13 10:44:36.8|Trace|CommandQueueManager|Checking if command is queued or started: DownloadedEpisodesScan
15-6-13 10:44:36.8|Trace|CommandQueueManager|Inserting new command: DownloadedEpisodesScan
15-6-13 10:44:36.9|Trace|CommandExecutor|DownloadedEpisodesScanCommand -> DownloadedEpisodesCommandService
15-6-13 10:44:36.9|Trace|CommandQueueManager|Marking command as started: DownloadedEpisodesScan
15-6-13 10:44:36.9|Debug|TransmissionProxy|Url: http://localhost:9091/transmission/rpc Action: torrent-get
15-6-13 10:44:36.9|Debug|RestSharpExtensions|Validating Responses from [POST] [http://localhost:9091/transmission/rpc] status: [OK]
15-6-13 10:44:36.9|Trace|ConfigService|Using default config value for 'downloadedepisodesfolder' defaultValue:''

have you looked at the sticky thread? https://forums.sonarr.tv/t/native-mono-crashes

All of those seem to at least have a FATAL line in their logs. Mine just has nothing, I’ve tried removing my whole NzbDrone config directory and starting from scratch but it still occurs

You won’t see the error in Sonarr’s logs because its been killed, you need to check the standard output/error. Either way, the sticky still stands, upgrade your kernel.