Gotcha! Thanks for reporting. Yes, right now, there is a bug if you install JLinked after you've installed the new JFBConnect. I thought you were installing the extensions in a different order.
We're rebuilding JLinked with the updated SourceCoast Library and will be releasing it in the next day or so. That will make it so you can install the extensions in either order.
Sorry for the problem, but as long as you install JFBConnect *after* JLinked, you shouldn't run into any issues.
Thanks again for the report, and sorry for the problem,
Alex