HELP?! Matte finish spray on canvas made the painting foggy!!?

I have a bunch of old (late 1940s) canvas paintings sitting in the basement. I wanted to freshen one of them up to hang in my dining room. My only goal was to make the colors appear richer. I used Krylon #1311 Matte Finish over the entire painting. When I came back a few hours later the painting was all foggy/cloudy!?! Is there any way to remove this cloudy appearance? Any product that would remove it?