website fonts and colors change after activating child theme and importing parent theme settings


I installed a child theme via Dashboard following the instructions here:
Upon refreshing my webpage, the font type, and the color of some buttons and bold fonts have changed. I deactivated the child theme and activated the original theme, plus imported a saved version of an earlier theme settings file, still, the above things did not go back to how I set them originally. When looking at the settings I see them in the right way, but they show up in the wrong way on my webpage. What could be the problem?

P.S.: I do not care about the child theme anymore. I just want to fix the appearance to look the way it was before installing the child theme.

Please contact the author fo the theme to get support: