Error code 520
Since around two days ago, my website (which has been running smoothly for over a year now) has started getting sporadic 520 errors. Vast majority of the time the website loads with no issue, but every once in a while there would be 520 errors and it would go away on its own after a few refreshes. There doesn't seem to be any pattern, which makes even reproducing it difficult as I have to keep refreshing the website until the 520 error shows up. How should I go about resolving this?
