Graylog logs full of "Couldn't find event definition with ID"

Hi–

In my graylog server logs, I see this error being continuously streamed:

2019-11-10T12:26:21.373-08:00 ERROR [EventNotificationExecutionJob] Couldn’t find event definition with ID <5dae52f29571ee0ba720c011>.
2019-11-10T12:26:21.373-08:00 ERROR [JobExecutionEngine] Unhandled job execution error - trigger=5db1c1639571ee0ba745c518 job=5d5991cd9571ee33ecd51dde
java.util.NoSuchElementException: No value present
at java.util.Optional.get(Optional.java:135) ~[?:1.8.0_222]
at org.graylog.events.notifications.EventNotificationExecutionJob.execute(EventNotificationExecutionJob.java:122) ~[graylog.jar:?]
at org.graylog.scheduler.JobExecutionEngine.executeJob(JobExecutionEngine.java:166) ~[graylog.jar:?]
at org.graylog.scheduler.JobExecutionEngine.lambda$handleTrigger$2(JobExecutionEngine.java:144) ~[graylog.jar:?]
at com.codahale.metrics.Timer.time(Timer.java:137) ~[graylog.jar:?]
at org.graylog.scheduler.JobExecutionEngine.handleTrigger(JobExecutionEngine.java:144) ~[graylog.jar:?]
at org.graylog.scheduler.JobExecutionEngine.lambda$execute$0(JobExecutionEngine.java:119) ~[graylog.jar:?]
at org.graylog.scheduler.worker.JobWorkerPool.lambda$execute$0(JobWorkerPool.java:110) ~[graylog.jar:?]
at com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:181) [graylog.jar:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_222]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_222]
at com.codahale.metrics.InstrumentedThreadFactory$InstrumentedRunnable.run(InstrumentedThreadFactory.java:66) [graylog.jar:?]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_222]

How can I resolve that? Thanks.

Eric

What do you think if you read the error message?

Hi–

Because this is a continuous stream, there is something that needs to be fixed, however, I don’t know what is and that is what I am asking for assistance for. I have not found a reference to job 5d5991cd9571ee33ecd51dde which is the only constant in the stream. Any assistance? Thanks.

Eric

how many events have you defined? I guess you might have worked directly on the MongoDB Database or imported some content packs?

I would delete all events and check if this error is still given and if yes, check the mongoDB