All my devices have stopped working

We recently had a power cut and now the power has been restored non of my devices work (unless i toggle them manually.

I have UBUNTU running OPENHAB2 on a HP server
I have numerous SONOFF

I can opertate the Sonoff’s if I go to the particular devices web address.
I can also operate them if I publish a message via a desktop MQTT client

If i try and turn the devices on from the Android App or, nothing happens other than the state changes in both applications and a confirmation is received in the events.log file.

From my limited knowledge it would appear that when the App or (or direct onto the local server is used , then the MQTT message is not being sent.

Any ideas or i will be left in the dark this evening