I have encountered a problem following Modul 1 (1.22 [VIDEO] Widgets in Wordpress). I can't see my widgets (even though I can see them at the home page), after setting a sidebar. Container has normal layout. I will really appreciate your help here.

For those who are looking for advice that will help, I strongly suggest asking for it here in Max Business School community. Special thank you to @Ayman Houssary who helped me solve the problem that I had.