Your garage door is reporting its openPercent as null. That likely means the device either doesn't report that data or its attribute mapping is incorrect. Most likely the former; garage doors only tend to report that they're open, opening, closed, or closing; not the percentage of the way that they're open or closed. You probably want to enable the "Discrete Only" toggle in your Open/Close trait.
The sync issue looks like it's because your sensor device type has no traits. Every device type needs at least one trait. You'll probably want the "Temperature Setting" and "Humidity Setting" traits for that sensor, both with their "Query Only" toggle turned on (there are no illuminance or motion traits currently supported).
