Fibaro wall plugs shutting down

I have two fibaro wall plugs that for one off a reason shut down suddenly. (Every day) No flows in which i shut down those wall plugs. Any ideas?

Overload?
9 out of 10 times it is a flow shutting them down.
When there is no overload (which can cause the shutdown) or flows shutting the device down then they must be broke. But again, check flows and overload.

Most times it are the flows. Every flow ends with a simply log. No logs concerning the fibaro wall plugs pop up. I will look further, fibaro untill niw did function. Nothing changed in my situation, no orher devices what so ever. Maybe resetting the plug.