The edit theme language doesn’t work

I try several time to change the text in some place on check out i find the right text and change it but nothing change in the checkout page pls help me change it

Can you share detail image?

For example this text i already found it in the settings

Please share your store url

https://flexmoreil.com

Theme only allows changing the text in the theme’s settings. If you want to make more changes, you should contact the theme developer for more clarity.

Hi thank for response

i don’t understand what you mean by theme developer

this is dawn theme that i use a little bit of code to design nothing to fancy

i just don’t understand why is not working i click the 3 dot near the theme and then change default language also find the text where is on checkout but when i try to see if it changes it show no sing of change is the same text as default