Sapien error

[Masterz1337]

02.18.08 14:26:57 EAX: 0x00000001
02.18.08 14:26:57 EBX: 0xFFFFE801
02.18.08 14:26:57 ECX: 0x0012F1FC
02.18.08 14:26:57 EDX: 0xA9E55D44
02.18.08 14:26:57 EDI: 0x0012EBD8
02.18.08 14:26:57 ESI: 0x00000000
02.18.08 14:26:57 EBP: 0x0012EAB0
02.18.08 14:26:57 ESP: 0x0012EAA0
02.18.08 14:26:57 EIP: 0x76FD0F34, C3 8D A4 24 ?????
02.18.08 14:26:57 EXCEPTION halt in \halopc\haloce\source\memory\data.c,#495: object index #401 (0xe8f20191) is unused or changed

This happens when I try to open up the trigger volumes in sapien for the a10 scenario.

[S3anyBoy]

You fucked something up. :\
Revert to your last backup.