PSN error 802a280 help

I just started getting this error and idk how to handle it. I'm just running a plain old (like from 2009) PS3, and I don't have anything tweaked as far as settings etc go. Tried to find some solutions in forums, but it's all way beyond my tech and comprehension. This morning it was fine, a few hours later it was not.

Any advice would be greatly appreciated!