[jurialmunkey]

Opps, I deleted it all. I added it for the convenience  of 'setting it and forgetting it' but if it is going to be so volatile and break frequently I'll just read the list from the website.

You are using a development version of the plugin - of course there are going to be small hiccups when installing the bleeding edge version.

Without a log I cannot fix the issue because I cannot see the context of the problem and you're using the plugin in a very unconvential manner.

The invalid params json rpc error indicates an item in the list has the incorrect dbid which doesn't exist in your library db - as to why that would occur, it's impossible to tell without the context (could be library unavailable, some other 3rd plugin editing the db, a disk error, item was removed, and so on).