Access global field content What could be the reason for this error when I’m targeting a global field?: 

Impossible to access an attribute ("footer") on a boolean variable ("").

I created a global set Footer with a matrix field also named Footer, I'm trying to get its content via:

{% for block in footer.footer %}
  {% if block.type == "column" %}
    &lt;div&gt;
      &lt;h4&gt;{{ block.headline }}&lt;/h4&gt;
      &lt;div&gt;{{ block.columnContent }}&lt;/div&gt;
    &lt;/div&gt;
  {% endif %}
{% endfor %}
I do not see anything obviously wrong with your code, but something that has caught me out many times is a misspelling of field names, so be sure your twig code matches your field names exactly. One thing that is a bit odd is the error message references "footerContent", but that does not appear in your code.