Hello!

I installed Piwigo about 9 months ago but never got around to doing anything with it until now. So, this is my current Environment:

Environment:
Piwigo 14.1.0 Check for upgrade
Installed on 12 April 2023, 8 months 3 weeks 6 days ago
Operating system: Linux
PHP: 8.0.28 (Show info) [2024-01-10 13:36:29]
MySQL: 10.11.2-MariaDB [2024-01-10 13:36:29]
Graphics Library: ImageMagick 6.9.12-61
Cache size 298.07 Mo calculated 2 days ago Refresh

Activated plugin list:
Birthdate
Extended Description
LocalFiles Editor
Manage Properties Photos
Personal Favicon

I've used the "Manage Properties Photos" plugin to allow me to display some IPTC content beneath each photo when it is individually displayed. In short, I've successfully mapped and am displaying the following:

$conf['show_iptc_mapping'] = array(
  'iptc_credit'          => '2#110',
  'iptc_object_name'     => '2#005',
  'iptc_caption'         => '2#120',
  'iptc_keywords'        => '2#025',
  'iptc_date_created'    => '2#055',
  'iptc_city'            => '2#090',
  'iptc_province_state'  => '2#095',
  'iptc_sublocation'     => '2#092'
  );

$conf['use_iptc'] = true;

$conf['use_iptc_mapping'] = array(
  'Author'          => '2#110',
  'Name'            => '2#005',
  'Comment'         => '2#120',
  'Keywords'        => '2#025',
  'Date_Taken'      => '2#055',
  'City'            => '2#090',
  'State'           => '2#095',
  'Place'           => '2#092'
  );

When I view an image where all of those IPTC fields have data in them, there is NO problem. Everything displays correctly.

However, when I view an image where one of the IPTC fields is empty (for example, "Comment" or "City") then I get the following error message where the field content would usually be displayed:

  Warning: Undefined array key "AIPDATA" in /volume1/web/pi/_data/templates_c/1y6qten_1xi49mk^779e7100532124b59ad734bfb615ab3345c2695c_0.file.picture.tpl.php on line 1285

Additionally, if two or more of those mapped IPTC fields are empty, I get the error message repeated (exactly the same) for each empty field.

Any ideas on how to fix this? Or maybe I've configured something incorrectly?

Thanks in advance. I know this is a long post.

Warmest regards,
GRAMPTON