module index error

[LordRaglan]

i was just adding a new item and got a strange error i've not seen before, i've had a play and can't figure it out

this is the error

隐藏

and this is the line i entered

["druchii_halberd",    "Druchii Halberd", [("bardiche", ixmesh_carry)], itp_type_two_handed_wpn|itp_merchandise|itp_primary, itc_staff, 1200, weight(5.0)|difficulty(13)|spd_rtng(93)|weapon_length(162)|swing_damage(59 , cut)|thrust_damage(0 , pierce)| imodbits_polearm ],