No, it means SambaPOS has identified issues with some of your Rules (4 problems). The Popup is a new feature, but the [Test Rules] link has been there for a long time; most people don't know what it is for and never use it.
The tool will detect even the smallest of things, like unmatched case-sensitivity.
Check the Action for
Change Order Price and you will probably find that
[:Price] is instead configured as
[:price] (lower-case 'p') for example, or it might be completely different.
I had a few Actions with that "issue", but they still worked fine. But if you want to suppress the Popup, you need to fix the problems. So if you change the parameter in the
Change Order Price Action to
[:Price] (upper-case 'P') and run the [Test Rules] check again, you should get a result of "Test completed without issues." This is because all of your detected issues relate to the same Action parameter and can be fixed with a single change.