I mistakenly wrote.
I write the correct message:
I have to pass the value of a category to code to upload an image.
I created a custom field user_submittet_category = 9 (value to pass).
In the code below I have ruled out the line 108 and added the 109.
In this way, the parameter is not passed.
If instead of get_the_ID() directly insert the number of the page ID that is
$ category = get_post_meta (405, ‘user_submitted_category’, true);
the parameter is transferred and everything works perfectly.
