Error message I've never seen before

[IsaacKronenFaust]

I was testing out the Glop Gun on a few zombies, found it could make short work of even Tanks and Witches, then I made a pile of 1x1 bricks to see how it would tear 'em down, then this happened.

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[Rathgarf]

I think the physics broke, judging by the context.

[Khain]

Same here.

[IsaacKronenFaust]

When the Mini-Nuke was released, I made a HUGE 1x1 box, somewhere around 40x40x40, and used events to spawnexplosion a Mini-Nuke at the center. It lagged for a bit, then went back to normal as the bricks came back. This was before physics though, and I no longer have the Mini-Nuke.

This Glop Gun(not blaming the Glop Gun for the crash) test happened in single player, of course, but if I did the same thing in a freebuild with a bunch of other players, would I end up crashing the server?