Why doesn't my mobile view show the correct slide image?

[UpMazine]

For the Slide section on my website, I have uploaded an image for the desktop view and another one image for the mobile view. But when i check on mobile, it doesn't show correctly and it still shows the image I uploaded for desktop. 

I appreciate any help and suggestions. Thanks. 

[azamgill]

Hey @UpMazine 
There must be some problem with in the code or With CSS 
If you share the URL of your store then i may try to suggest a solution.

[UpMazine]

Thanks @azamgill,

Here is the store URL.

https://upmazine.com

The slide image below is what shows incorrectly.