PSP & PS Program Help?

I don't think this is the right place to post this problem, but I honestly have no idea where to ask and it's giving me a problem for a couple of days now.

PaintShop Pro, alongside with PhotoShop has been giving me problems. Everytime I'm trying to save an art as a .png file, like I always do, it's been either automatically shutting down the program on me, or having a window saying to terminate the program/debugging it, or sending an error report (which does nothing). I save my stuff as .png and it has been always doing that. The other filenames doesn't do that, but .png does and I like saving it as .png. And sometimes, the program doesn't run. It would load, but never completely loads, you know what I mean? Does this happen to anyone before? Or does anybody know what might cause the problem that might be able to tell me how to fix it? Thanks.

And yes, I've been restarting and turning off my computer in the past couple of days, but does the same thing.