Hi Marina,
What I have seen that in your website footer, you have taken a single bar element for all the columns.
And set the container Child Placement as Column and that is why the button elements are shown in a different row.
I would like to suggest a few steps that may help you to achieve this.
Step 1: Take two different bars and set the Child Placement as Row to get those side by side.
Step 2: And put all first three columns i.e container in the first bar element and last column in the second bar. You can also create different bar for different containers too.
Step 3: Set Child Placement as Row for the first bar and Column for the bar.
Step 4: Add three different containers for the second bar.
Step 5: Set the button in the first container.
Step 6: Set the text in the second container.
Step 7: Set Child Placement as Row for the third container.
Step 8: Add the button element to the third container.
Hope it will help.
Thanks