Hello, @Rikinte,
1. I went to the header builder on your site and edited the condition and checked that the condition has been set properly: https://postimg.cc/G4SYbXTb and then I edited that header as well from here: https://postimg.cc/KK6MM45V and it looks like this: https://postimg.cc/PPX2xFJD and finally I checked it on your site Post page and it is working perfectly fine as well for me, here is the screenshot: https://postimg.cc/ctsMvrxW so it must be the cache issue at your end nothing else, please try to clear the cache and check back.
2. You can simply edit the particular post/page and set the Breadcrumbs to show as “disable“: https://postimg.cc/PPvNmdCn
3. Your issue has been solved please check back to your site now after removing the browser cache. I have set it from the Revolution Slider plugin setting: https://postimg.cc/dhXw9xxk
4. Please copy and paste the below-given CSS code to XStore >> Theme Settings >> Theme Custom CSS >> Global CSS and check back to your site after removing the browser cache.
.widget-title {
text-transform: lowercase !important;
}
Regards 8Themes Team.