I am working on this website' performance, since the wp-admin seems to be loading really slow from time to time, almost like if its stuck. I see a lot of this one error inside my debug.log, I would like to ask what it is, if it can impact the wp-admin performance and how to get rid of it/fix it. I am not sure what triggers this, I think its only when I work on the website, and then this error is in the logs like every 2/3 minutes.
[01-Dec-2025 11:17:07 UTC] PHP Fatal error: Uncaught InvalidArgumentException: Argument $language_code must be a non empty string. in /home/****/public_html/wp-content/plugins/sitepress-multilingual-cms/classes/translations/class-wpml-translation-element.php:85
Stack trace:
#0 /home/****/public_html/wp-content/plugins/sitepress-multilingual-cms/classes/media/duplication/class-wpml-media-attachments-duplication.php(847): WPML_Translation_Element->get_translation()
#1 /home/****/public_html/wp-content/plugins/sitepress-multilingual-cms/classes/media/duplication/class-wpml-media-attachments-duplication.php(780): WPML_Media_Attachments_Duplication->get_translated_attachment_id()
#2 /home/****/public_html/wp-content/plugins/sitepress-multilingual-cms/classes/media/duplication/class-wpml-media-attachments-duplication.php(797): WPML_Media_Attachments_Duplication->{closure}()
#3 /home/****/public_html/wp-content/plugins/sitepress-multilingual-cms/classes/media/duplication/class-wpml-media-attachments-duplication.php(802): WPML_Media_Attachments_Duplication->{closure}()
#4 /home/****/public_html/wp-content/plugins/sitepress-multilingual-cms/classes/media/duplication/class-wpml-media-attachments-duplication.php(756): WPML_Media_Attachments_Duplication->translate_bricks_media()
#5 /home/****/public_html/wp-includes/class-wp-hook.php(324): WPML_Media_Attachments_Duplication->maybe_translate_medias_in_posts()
#6 /home/****/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#7 /home/****/public_html/wp-includes/plugin.php(517): WP_Hook->do_action()
#8 /home/****/public_html/wp-includes/load.php(1304): do_action()
#9 [internal function]: shutdown_action_hook()
#10 {main}
thrown in /home/****/public_html/wp-content/plugins/sitepress-multilingual-cms/classes/translations/class-wpml-translation-element.php on line 85
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