I want to make a script to get a notification when my RFlink gives an error. How to do that? There in no trigger from type 'error' in dzVent.

After powering up my nas usb port was changed to /dev/ttyUSB1. Now I did a new reboot with USB disconnected and after starting up connect USB again. Port was changed to /dev/ttyUSB0 and now problem seems to be solved.

RFlink is working very well for a long time, but after a power outage of my synology i get lot of time outs in the log.
Communication is not stable, because sometimes switch working good and somtimes not.

Log:
2018-12-03 08:16:10.160 Status: User: Admin initiated a switch command (10/Leeslamp/On ...