Hi,
I had a look at your site and I see you are using a different plugin now, but the issue is pretty clear as to what’s going on because your current site has problems with the other notification bar you are now using.
If you look at the site you can see your header and menu are in a fixed position. Because the other plugin you are using places the notice in a fixed position it’s showing up on top of your fixed menu/header.
My plugin (Easy Notification Bar) is placed in a static position so if you didn’t see it, it’s because your fixed menu/header was going on top of the notice. This is common in theme’s that don’t have properly coded sticky/fixed headers and are placed at the top of page without any consideration for elements added before them. If you were to disable the fixed/sticky header in your theme you probably would have seen the notification bar just fine.
Of course since you switched plugin’s I can’t be sure 100% that the issue was a conflict with your theme’s sticky/fixed header, but it’s usually the case. The only reason i could think of for the notice to not show up would be simply because you didn’t go into the Customizer and add a notice (by default it’s empty).
Now, because the notification bar you switched to is placed in a fixed position over your fixed header it is visible but it’s actually pushing your theme’s top menu down so it’s not visible, so you will probably still want to reach out to your theme developer for a fix.
You can see this when you load the page the top black menu of your site is visible for a brief second until the notification bar plugin injects it’s notice: https://a.cl.ly/YEuwR00z
