This is usually a write issue on a certain file.
This could happen for instance for the service ifttt, yahoo weather, virtual device, …
On Synology, execute following ssh command:
sudo chmod 777 -R /volume1/web/PulseStation/data/*
On Raspberry Pi execute following ssh command:
sudo chmod 777 -R /usr/share/PulseStation/data/*
If it’s the zwave service that is not storing parameters, check the zwave logs instead. This is written to the device, not to PulseStation itself.