what version? I think the latest is 2.4.2
Is Enscape still working in SketchUp 2018?
In that case you should go to [Menu] Extensions->Enscape->About
And visit the download area:
download here:
When downloaded, make sure all SketchUp and LayOut is closed, rightclick in the download folder on the installer and choose ‘Run as Administrator’
All settings and licenses should be transfered to SketchUp 2019