How do I open Sefaira in SketchUp 2019?

I have three licenses, 2 are SUPro2019 and one SUPro2018. was keen to try out Sefaira, but getting same ‘unassigned’ tag. Pls help

If you haven’t trial-ed version 2020, you can do a trial.
You need to sign in with a Trimble ID.