Same here. My roller shutters stopped working over the day.
In my case I got it back working by doing the following steps:
- Upgrading Openhab to the latest 2.5 snapshot (I was already using an older 2.5 snapshot)
- Removing the Somfy-Tahoma Binding through the PaperUI
- Downloading the latest snapshot of the binding from Post #324 to /usr/share/openhab2/addons/
- Various Restarts of openhab during the process
