Bug: crash on stargate jump to certian system

[(name here)]

09/22/2007 14:23:51 --------------------------------------------------------------------------------
09/22/2007 14:23:51 Start logging session
09/22/2007 14:23:51 Transcendence 0.98c
09/22/2007 14:23:59 Loading extension: Extensions\fleets
09/22/2007 14:23:59 Unknown design element: StarSystemDescription
09/22/2007 14:24:21 Unable to continue due to program error

program state: updating universe
game state: entering stargate

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Context: i get this every time i try to jump to the system right before dantailon. the system contains the Terra, I destroyed the Antarctica using the lamplighter prototype before returning it. I'd stopped by the terra before the crash bug popped up, and talked to the admiral.

[kaypy]

I have had a crash while running the fleets extension, too. But this was way back in the charon system. Without the fleets, the game has been pretty stable, so I think this indicates something in the extension is triggering it.

[(name here)]

I've had crashes on jumps to systems before, but this only applies to that one system, and only after i did things out of order.