Pinegrow wordpress acf pro

hi all need help pls…

i wont to convert front page to acf pro Flexible Content
i work by this tutrialus
http://docs.pinegrow.com/how-to-use-acf-pro-flexible-content-with-pinegrow-wp/
and the text and button work for me …only about the image dont work for me …
i have a container wit bg image and div image this two dont work …

can anybody sherh how to fix this ?

tnx

hi thanks

were i need to add this in pinegrow

url(<?php the_field('background_image'); ?>

if i dont wont to lose the background image in pinegrow

pls help me i working on this 3 days and dont get this