Warning messages after uninstalling LB 1.8 and installing LB 1.9

I get this series of warning messages after uninstalling LB 1.8 and installing LB 1.9.
Does anyone know what it means and how I can address the issues?
It pops up every time I open Rhino.

Hi @Rob,

This looks to be in a similar vein to the issue I raised here:

Which might be useful for the Devs reference in trying to solve your issue.