My Custom CSS is not working

I have Avada theme, But when I add custom CSS in the customizer or in Avada theme options it does not reflect on the frontend, rather the fusion styles min.css file keeps on showing the previous CSS and not the updated one. I tried to disable CSS Compiling method but it messed up my website design , I also tried to switch the CSS Compiling method to Database but it again messed up the CSS in the frontend.
Kindly let me know the solution immediately as I have regular visitors on my website, I need this to be immediately fixed.

Waiting for your positive response.

Thanks
Declan

Hi,

Contact with your purchase item author hope they will helped!

Thanks

Reason: You might have deleted a custom CSS class and or CSS ID set for an element to which you want to apply the CSS Code. Fix: Double check your CSS Code to ensure your CSS Selector exists on the page.