It’s normal that you encounter “many problems” if you do not read the manual (RTFM).
The first 2 problems you encountered are well documented and explained in the README of the binding in the installation instructions. Just read it.
The 3rd one is a bundle loading error (I am registering the bundle twice), but it does not affect the normal functionality of the binding, so simply leave it there.
Regarding the other errors about INVALID FRAME, it’s true they are not supported yet.
I guess these are rollershutters that use command translation (1000#), meaning they are connected to some non-BTicino system, is this correct?
Are your rollershutters WHERE 11, 12, 21, 31, 32, 42, 51, 52 workin? can be controlled by the binding ?
You may want to file a new issue here to have these commands supported.