1.97 SMP + forge 3.3.8+mc1.2.5 Crashes using geogenerator

Hy guys, sorry for my englisch... this is my report:

"2012-08-03 02:37:22 [SEVERE] Unexpected exception
java.lang.NoSuchMethodError: buildcraft.api.BuildCraftAPI.getLiquidForFilledItem(Lkp;)I
at ic2.bcIntegration31x.common.TileEntityGeoGeneratorBc31x.gainFuelSub(TileEntityGeoGeneratorBc31x.java:28)
at ic2.common.TileEntityGeoGenerator.gainFuel(TileEntityGeoGenerator.java:71)
at ic2.common.TileEntityBaseGenerator.q_(TileEntityBaseGenerator.java:114)

at ge.f(World.java:1608)
at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:561)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:448)
at dn.run(SourceFile:492)
"

Server running in Linux VPS 2GB ram. MC 1.2.5+FORGE 3.3.8+IC21.97+REDPOWER2.0+EE1.4.4.6

Very thanks for help!
Hugs!
Egon Carlos.

buildcraft not installed on this server

regards.

ok many characters to post here, link to download server.log:
http://www.mediafire.com/?hm77pb6pg3f9cu4

I'm try to simulate crash at night and post new infos, maybe a video ok?
thanks!

and where do I find this log?

I talked to the player who was playing, he told me he was not using mining machines, but ... I do not know what else to say ... The server crashed one more time today ...