Can anyone help me interpet this error log?

As soon as I install CAE 1.4 I get this log error when entering a battle even if it's a custom or quick battle. Can anyone advise me on what the log is telling me? Thanks.

20:30:15.927 [system.rpt] [always] CPU: SSE2
20:30:15.927 [system.rpt] [always] ==== system log start, build date: Jun 25 2007 version bld-medieval2-update2.1-30 (43169) ===
20:30:15.943 [system.io] [always] mounted pack packs/data_0.pack
20:30:15.943 [system.io] [always] mounted pack packs/data_1.pack
20:30:15.959 [system.io] [always] mounted pack packs/data_2.pack
20:30:15.959 [system.io] [always] mounted pack packs/data_3.pack
20:30:15.959 [system.io] [always] mounted pack packs/data_4.pack
20:30:15.959 [system.io] [always] mounted pack packs/localized.pack
20:30:25.896 [script.err] [error] Script Error in CloudsAcrossEurope/data/export_descr_buildings.txt, at line 5796, column 2
Building DB error - faction mongols has gap in building prior to masjid (unavailable at level zero)
20:30:25.912 [data.invalid] [error] Target building level not allowed: The Mongols, town -> wooden_castle, sudbeth_altar[0](sudbeth_altar) -> sudbeth_altar[0](sudbeth_altar)
20:30:25.912 [data.invalid] [error] Target building level not allowed: The Mongols, large_town -> castle, temple_muslim[1](masjid) -> temple_muslim_castle[1](c_masjid)
20:30:25.912 [data.invalid] [error] Target building level not allowed: The Mongols, large_town -> castle, sudbeth_altar[0](sudbeth_altar) -> sudbeth_altar[0](sudbeth_altar)
20:30:25.912 [data.invalid] [error] Target building level not allowed: The Mongols, wooden_castle -> town, sudbeth_altar_c[0](sudbeth_altar_c) -> sudbeth_altar_c[0](sudbeth_altar_c)
20:30:25.912 [data.invalid] [error] Target building level not allowed: The Mongols, castle -> large_town, sudbeth_altar_c[0](sudbeth_altar_c) -> sudbeth_altar_c[0](sudbeth_altar_c)
20:30:25.912 [data.invalid] [error] Target building level not allowed: The Mongols, fortress -> city, sudbeth_altar_c[0](sudbeth_altar_c) -> sudbeth_altar_c[0](sudbeth_altar_c)
20:30:25.912 [data.invalid] [error] Target building level not allowed: The Mongols, citadel -> city, sudbeth_altar_c[0](sudbeth_altar_c) -> sudbeth_altar_c[0](sudbeth_altar_c)
20:30:25.912 [data.invalid] [error] Target building level not allowed: Grand Duchy of Lithuania, wooden_castle -> town, temple_pagan_castle[0](dievas_temple_c) -> temple_pagan[0](high_temple)
20:30:25.912 [data.invalid] [error] Target building level not allowed: Grand Duchy of Lithuania, castle -> large_town, temple_pagan_castle[0](dievas_temple_c) -> temple_pagan[0](high_temple)
20:30:25.912 [data.invalid] [error] Target building level not allowed: Grand Duchy of Lithuania, fortress -> city, temple_pagan_castle[0](dievas_temple_c) -> temple_pagan[0](high_temple)
20:30:25.912 [data.invalid] [error] Target building level not allowed: Grand Duchy of Lithuania, citadel -> city, temple_pagan_castle[0](dievas_temple_c) -> temple_pagan[0](high_temple)
20:31:40.490 [system.rpt] [error] Medieval 2: Total War encountered an unspecified error and will now exit.