Can’t edit the font size in elementor

hi I’m having issues with editing the font size of the text on the page. I did add custom code for the size at some point but when I went back to check in the box it wasn’t there but the style is still there, I checked using google chrome inspect and it looks like the fonts are using the style from the following path:

/wp-content/uploads/elementor/CSS/post-2158 and I checked the files and yes the styles are still there I tried deleting them but as soon as I refresh they reappeared again.

Can you please help, thanks a lot

The page I need help with: [log in to see the link]