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Hello,

If the script returns:

Call to a member function addImage() on null

then $rooms_image in $rooms_image->addImage($image_options); is null, not a CreateDocx/CreateDocxFromTemplate instance. And also, as we can check in the output sent, the error appears in the script you are running:

Call to a member function addImage() on null

File 
BrochureHelpers.php

If an exception or error is returned by phpdocx, then a phpdocx class appears, not an external script (BrochureHelpers.php).

Maybe your code has a conditional that generates a correct CreateDocx object based on the image (or other condition) and in some cases, the object is not being generated correctly?

phpdocx doesn't throw a null error if an image can't be added, it returns an image error exception.

We recommend you to run the included samples and test addImage standalone with the same images: https://www.phpdocx.com/api-documentation/word-content/insert-image-Word-document-with-PHP, so you can find the source of the problem.

Regards.