Hello,
Under the Category edit area, there are two Descriptions to add. One is the main Description and the other one is the Extra Description: https://snipboard.io/QpUuzY.jpg
So, as we have checked your Site, you have defined the Extra Description content for the Category page on your Site which generally shows the content below the Products on the Category pages.
Unfortunately, right now there isn’t any option available to change the position of the Extra Description content.
Although, if you have defined the other Main Description for the Category then you can change its position by going to the Dashboard > Theme Settings > Product archive > there you can find the option for Category description position > you can select your choice of option there: https://snipboard.io/okxJZB.jpg
Hope this helps !
Best Regards