Dispatching event to subscriber 'org.eclipse.smarthome.io.monitor.internal.EventLogger@1aede92' takes more than 5000ms

Hello,
I saw several of these warnings yesterday:

2020-10-24 10:21:22.771 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.monitor.internal.EventLogger@1aede92' takes more than 5000ms.
2020-10-24 10:23:17.481 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.monitor.internal.EventLogger@1aede92' takes more than 5000ms.
2020-10-24 10:23:52.688 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.monitor.internal.EventLogger@1aede92' takes more than 5000ms.
2020-10-24 10:25:17.311 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.monitor.internal.EventLogger@1aede92' takes more than 5000ms.
2020-10-24 10:27:59.475 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.monitor.internal.EventLogger@1aede92' takes more than 5000ms.

Is this something to worry about? Or just ignore it?
P.S.: I am running Openhab 2.5.4 on a Raspberry Pi in a docker container.

Regards
Bernd

‘Something’ caused a slow down on your system, delaying ordinary work.

That might be an expected ‘something’, as when running a backup.
Or it might be a unexpected problem.

Not enough of a clue on its own.

Ok, thx. Could be that I was copying files to the Pi around this time.