Rucha, I hope you didn’t follow those instructions.
You can adjust the footer section much easier by following the instructions I sent you on how to adjust your sidebar.
1. Go to “Appearance” in the left column on the dashboard.
2. Click on “Widgets”.
3. Notice the tabs on the right called “Footer 1”, “Footer 2”, “Footer 3”, “Footer 4”.
4. Drag and drop the selected widgets into each footer tab. Footer 1 is on the far left and Footer 4 is on the far right.
(If you can’t find a specific widget that you want to add, go to “pluggins” and install the plugins that you need.)
5. Adjust the settings for each individual widget.
Note: You must click “save” after you add each widget.