Vinegar is one option that most people seem to use and oil of cloves is another that has success ,here is a link to how to remove it . https://oilofcloves.com.au/blogs/mou...ould-on-canvas
I used 30 sec mood remover 5 years ago on a windup camper I had and it was ok short term but it came back with a vengeance so I treated it with oil of cloves and had no problem again .Matt