Shanna Moakler and Travis Barker no longer speak to each other. The former couple – who share son Landon, 20, and daughter Alabama, 18, together – were married from 2004 to 2008 but Shanna admitted they are no longer on speaking terms, although she hopes that will change in the future. Shanna, 49, told PEOPLE: “We don’t speak anymore. I don’t have a relationship with Travis, but I think that’s OK. I don’t feel like it’ll be like that forever, but I feel like right now — I think that’s where we are at in our evolution, and maybe in the future, it’ll change.” Shanna also has daughter Atiana, 25,…