@OldBoot Thanks for reaching out!
As long as the material is still in good shape, i.e. not threadbare or full of holes, you might still be able to repair your tent and get even more years out of it. Check out this thread we had with another member who had the same question. If you'd like to jump right to the Expert Advice article on How to Waterproof a Tent you can do that here. There's a section in that article about how to re-seal your tent floor.
Hope this helps!