The server has been fine until today, when it started crashing and getting overloaded for apparently no reason. There have been no big changes. I am aware that the Snapshots aren't guaranteed to work, but the server has worked fine until now. Attached are some crash reports.
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Dupe of MC-63590
CubeTheThird
Please do not mark unreleased versions (anything starting with "Future Version") as affected. You don't have access to them yet.