So many Error 500's

[Jack99]

I get error 500 all the time on random pages. Go from page 2 to page 3 - error 500. Open a story, error 500. Seems like about 1 in 5 chance that a page will load.
Of course, hitting refresh then displays the page. Happens on chrome in windows, and in IOS.
Please fix this, man is it annoying.