Help! my livery from the design catalog can't be deleted!

Yesterday, I was just trying to make one of my liveries when I just pressed the ‘Save to design catalog’ button, then painted it. While I was test driving my new livery of my car, the decal went wrong; my car’s name at the back of my car has the wrong name. The next day, I tried to delete the livery, but the ‘Delete’ option was nowhere to be found. Can you help me find a way on how to make the ‘Delete’ option appear?

do you have it loaded on the car? If so, there’s no option to delete it. You have to remove it from the car you’re driving, then you should be able to delete it.