Error Occurred When Data change from site but can't displayed on Owner side

Website URL

https://marsmods.infinityfree.me/

Error Message

(I am facing this problem that when I am changing data from owner side, the updated data is showing on client side but when I refresh the page on my browser, the updated content is not showing.)

Other Information

(I am facing this problem that when I am changing data from owner side, the updated data is showing on client side but when I refresh the page on my browser, the updated content is not showing.)