Unknown get_image function error

Hello,

I am experiencing the following error when trying to display an image gallery Advanced Custom Field’s field on my client’s website.

Fatal error: Uncaught Exception: Unknown "get_image" function.

The code that I am using to display the gallery of images is being used in a category Twig file using the following code. Not all story posts have galleries, but the if statement should be handling this I assume.

I copied the gallery output code directly from the Timber documentation site.

Timber is up to date using 1.18.2.

{% if story.meta( 'photo_gallery' ) %}
  {% for image in story.meta( 'photo_gallery' ) %}
   <img src="{{ get_image(image) }}" />
  {% endfor %}
{% endif %}