Lightroom 4 is outdated and nearly a decade since it came out. It will never sync with modern Creative Cloud, sorry.
Do you have a Creative Cloud subscription? If so, you should be using modern Lightroom for Mobile or Lightroom Classic version 10.0 or higher to sync to the Creative Cloud. And you may disable syncing from your Creative Cloud Desktop App.
Nancy O'Shea, Product User & Community Expert Alt-Web Design & Publishing ~ Web : Print : Graphics : Media