[halo1-xbox] HMT problem with sp->mp conversion

[halo0001]

hey i was trying a first mod for halo 1 xbox cuz i was bored but in hmt v 3.5 when i went to tools-> extract-> bsp modle sections, it gave me an error saying there was arithmitic overflow, wut does that mean? I am trying a sp-> mp conversion. Mp is carousel which was the map i was using.