Better Sitemap plugin is recording error

Hi Navjot, your Better Sitemap plugin is recording error below;

[11-Jun-2020 17:37:37 Europe/Istanbul] PHP Notice: Undefined index: fk_i_item_id in /home/xxxx/domains/xxxx/public_html/oc-content/plugins/images_sitemap/functions.php on line 29

These are PHP notices, nothing to worry about.