Not putting in help because im not going to troubleshoot and its working now.
I was playing on my cityrpg, a fair amount of people on. Literally out of nowhere, my blockland froze. Ok, probably just my computer being a bum. Then it froze for a straight 3-4 minutes being extremely unresponsive. Once i closed bl and opened it up again i was good. The server console (dedi) was still up but not on the list and i had to restart it. When i talked to 3 people who were on (plolz, sinnerog and some other guy) they all said their blockland froze as well and became completely unresponsive. I really have no idea what happened but whatever it was, it was NOT good (i lost a lot of build progress) and if it can make me have to restart my computer due to the slowness, then its bad. I think someone tried to crash us but not sure. Hints?