Hi Gabriel,
Sorry for the inconvenience.
Please follow carefully the steps below to install the theme and import the demo data properly.
1. Clean your full database “OR” reinstall a new WordPress with a new database
2. Then install the theme
3. Then install all of the required plugins
4. Then active all of the installed plugins
5. then import all of the demo data (wait until all of the demo data are imported completely)
Moreover, you could follow the steps from the provided documentation to to install the theme and import the demo data properly. Also, please watch the video tutorials (here https://www.youtube.com/playlist?list=PLbmIKrgYlRbrak6Ymxl2Qkp83gsNhGRYp ) to customize this theme in the proper way.
Best Regards,
ThemeLooks Support Team