Demo content not working, missing Madang plugins?

Hello, Site: purchased and installed this theme and I'm running into issues.The theme installation steps are not updated to match the current user experienceI was eventually able to install the demo content (which didn't match installation steps) but most of the pages don't show up, only the header and footer.I edited the pages to see what was up and almost all of them say missing Madange widgets, but the recommended plugin as well as the are all installed and none of the missing widgets were included.Please advise.Thanks,Kevin W.