We can confirm that your issue is present only in the English version of your site. This indicates that it is caused by specific settings in one of the languages created via WPML, or an issue/bug within the WPML plugin itself.
In your response (link https://xtemos.com/forums/topic/delivery-fee/#post-609726), you mentioned that this issue persists even with the WoodMart theme disabled, which means our theme and its options do not affect your site’s functionality in this case. Our support covers only issues caused by our theme, which mean this falls outside the scope of WoodMart theme support, since it can’t be fixed by changing theme files or settings.
To fix this issue, try to contact WPML support so they can investigate this problem on their end https://wpml.org/forums/forum/english-support/
Kind Regards