Script Error, Crashes

[Namm]

Not sure if it's relevant, but when I defend Tunis outer wall (it's a Southern European Citadell) the game crashes after a short while. Probably when I rout the guys carrying the ram. No crash if I place my guys at the second and last wall only. It's the 1300's by the way. I have the latest versions of everything.

The log:

20:16:49.187 [system.rpt] [always] CPU: SSE2
20:16:49.187 [system.rpt] [always] ==== system log start, build date: Apr 23 2007 version bld-medieval2-update2-84 (37970) ===
20:16:49.187 [system.io] [always] mounted pack packs/data_0.pack
20:16:49.187 [system.io] [always] mounted pack packs/data_1.pack
20:16:49.187 [system.io] [always] mounted pack packs/data_2.pack
20:16:49.203 [system.io] [always] mounted pack packs/data_3.pack
20:16:49.203 [system.io] [always] mounted pack packs/data_4.pack
20:16:49.203 [system.io] [always] mounted pack packs/localized.pack
20:16:52.515 [script.err] [error] Script Error in landstoconquer/data/export_descr_buildings.txt, at line 521, column 158
unit(NE Late Bodyguard) does not match up to the ownership for faction(normans)
20:16:52.531 [script.err] [error] Script Error in landstoconquer/data/export_descr_buildings.txt, at line 591, column 158
unit(NE Late Bodyguard) does not match up to the ownership for faction(normans)
20:16:52.546 [script.err] [error] Script Error in landstoconquer/data/export_descr_buildings.txt, at line 1067, column 162
Expected faction or culture type, or 'all' - faction or culture type could be wrong; terminate list with comma; enclose list in {}
20:16:52.859 [script.err] [error] Script Error in landstoconquer/data/export_descr_buildings.txt, at line 5062, column 2
Building DB error - faction aztecs has gap in building prior to armoury (unavailable at level zero)
20:16:52.859 [script.err] [error] Script Error in landstoconquer/data/export_descr_buildings.txt, at line 5062, column 2
Building DB error - faction normans has gap in building prior to armoury
20:16:52.859 [script.err] [error] Script Error in landstoconquer/data/export_descr_buildings.txt, at line 5062, column 2
Building DB error - faction saxons has gap in building prior to armoury
20:16:52.875 [data.invalid] [error] Target building level not allowed: The Aztecs, citadel -> city, castle_barracks[4](armoury) -> barracks[3](militia_drill_square)
20:16:52.875 [data.invalid] [error] Target building level not allowed: The Mongols, citadel -> city, castle_barracks[4](armoury) -> barracks[3](militia_drill_square)
20:16:52.875 [data.invalid] [error] Target building level not allowed: Normans, citadel -> city, castle_barracks[4](armoury) -> barracks[3](militia_drill_square)
20:16:52.875 [data.invalid] [error] Target building level not allowed: Saxons, citadel -> city, castle_barracks[4](armoury) -> barracks[3](militia_drill_square)
20:16:53.062 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 5485, column 11
Could'n find level name description string for trait(BadRiskyAttacker) level(Picks_Fights_Poorly).
20:16:53.062 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 5486, column 21
Could'n find description string for trait(BadRiskyAttacker) level(Picks_Fights_Poorly_desc).
20:16:53.062 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 5487, column 28
Could'n find effect description string for trait(BadRiskyAttacker) level(Picks_Fights_Poorly_effects_desc).
20:16:53.062 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 6655, column 11
Could'n find level name description string for trait(EducatedWoman) level(Intelligent_Lady).
20:16:53.062 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 6656, column 21
Could'n find description string for trait(EducatedWoman) level(Intelligent_Lady_desc).
20:16:53.062 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 6657, column 28
Could'n find effect description string for trait(EducatedWoman) level(Intelligent_Lady_effects_desc).
20:16:53.078 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 10227, column 11
Could'n find level name description string for trait(GoodSaboteur) level(Successful_Saboteur).
20:16:53.078 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 10228, column 21
Could'n find description string for trait(GoodSaboteur) level(Successful_Saboteur_desc).
20:16:53.078 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 10229, column 28
Could'n find effect description string for trait(GoodSaboteur) level(Successful_Saboteur_effects_desc).
20:16:53.078 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 10234, column 11
Could'n find level name description string for trait(GoodSaboteur) level(Expert_Saboteur).
20:16:53.078 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 10235, column 21
Could'n find description string for trait(GoodSaboteur) level(Expert_Saboteur_desc).
20:16:53.078 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 10236, column 28
Could'n find effect description string for trait(GoodSaboteur) level(Expert_Saboteur_effects_desc).
20:16:53.078 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 10241, column 11
Could'n find level name description string for trait(GoodSaboteur) level(Master_Saboteur).
20:16:53.078 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 10242, column 21
Could'n find description string for trait(GoodSaboteur) level(Master_Saboteur_desc).
20:16:53.078 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 10243, column 28
Could'n find effect description string for trait(GoodSaboteur) level(Master_Saboteur_effects_desc).
20:16:53.078 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 10254, column 11
Could'n find level name description string for trait(BadSaboteur) level(Unsuccessful_Saboteur).
20:16:53.078 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 10255, column 21
Could'n find description string for trait(BadSaboteur) level(Unsuccessful_Saboteur_desc).
20:16:53.078 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 10256, column 28
Could'n find effect description string for trait(BadSaboteur) level(Unsuccessful_Saboteur_effects_desc).
20:16:53.078 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 10261, column 11
Could'n find level name description string for trait(BadSaboteur) level(Inept_Saboteur).
20:16:53.078 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 10262, column 21
Could'n find description string for trait(BadSaboteur) level(Inept_Saboteur_desc).
20:16:53.078 [script.err] [error] Script Error in landstoconquer/data/export_descr_character_traits.txt, at line 10263, column 28
Could'n find effect description string for trait(BadSaboteur) level(Inept_Saboteur_effects_desc).
20:53:48.578 [system.rpt] [error] Medieval 2: Total War encountered an unspecified error and will now exit.

[Lusted]

Yeah those errors are normal and aren't causing the crashes.