I think your issues is related to myopenhab binding not the chamberlain MyQ binding. I would make sure you have the newest “myopenhab” binding in your addons folder. Also check you UUID and Secret ID’s for myopehhab. The binding also requires Java 1.8.0_101 for the it to work properly. This wiki has all the instructions of openHAB 1.8. Latest binding can be downloaded from here. Kai has an forum post will a lot more information if needed, See below:
