One-Click Word Press

I did a simple install of One-Click Word Press. Is that why I apparently can’t install plugins?
Do I need to de-install that and reinstall custom?
Will I lose my settings/data?

yes you will need a custom install.
you could re-use the same database when you re-install. Since the old was a simple install there can’t be any modified files, so re-using the database should bring all your settings and data with you.

Thanks so much, Lake. Really appreciate your help.