The submittal policies allow you to suggest your site twice.
When?
I wouldn't rush to use my second suggestion. Why? I'd wait because THIS might happen: sometime in the future I might realize that my website wasn't originally listable, but I had added new unique content that made it listable.
And if that happened, I'd want to use my second suggestion--if I hadn't already used it.
But, obviously, you're the only person to judge whether that might happen, or if it has already happened. And you are always free to use the second suggestion whenever you want, based on your best judgment.
As to the latest questions:
If the website is in Romanian, YES, the description should be in correct Romanian (which I guess uses diacritics?), and YES, it should be in a subcategory of World: Română. And if you didn't do that before, then YES, it would help us if you made a new, more correct suggestion.
But if you make a mistake in your suggestion, and you don't correct your own suggestion, don't worry, someone else WILL correct it.