It has rarely ever crashed, and never for 20 hours straight. This was first time i ever saw such a thing on Reloaded, and even going back to 2238. However...
I heard a rumor from a reliable source that another certain FOnline server had a lot of hacker attack problems - someone was hitting it and crashing it over and over a lot, and not too long ago. I only play Reloaded so i don't know if that hacker ever stopped doing that over there, but now i wonder if maybe their attention has shifted to us.