So I wanted to start a new game after like 8 years and I got this after trying to run AIMNAS downloaded right from here 2 hours ago, here's the 1.13 version with all the details and the picture of the error.
Distribution Name: JA2_113-v1-18-g8ec02b2-GdcadL1f1a-English
Game Version: v1-18-g8ec02b2
Language: English
Build Information: 2023-08-23 GitHub 1dot13/source branch master
Source Repository: 1dot13/source
Source Commit SHA: 8ec02b2d40b0c81eb1e3a6a58188b384b0c8dae4
Source Commit Date: 2023-08-23T08:21:22+00:00
Gamedir Repository: 1dot13/gamedir
Gamedir Commit SHA: dcadd40dadbff71fbdd5d7fe3e77aca12899ecb1
Gamedir Commit Date: 2023-08-23T04:43:32+00:00
Gamedir Languages Repository: 1dot13/gamedir-languages
Gamedir Languages Commit SHA: 1f1a8c657e92d9873e259461da914ba52124136a
Gamedir Languages Commit Date: 2023-08-20T17:52:19+00:00
[4.21801] : ERROR : File : D:\a\source\source\Init.cpp
Line : 1454
Location : InitializeJA2
Loading external data failed
File : D:\a\source\source\Init.cpp
Line : 445
Location : LoadExternalGameplayData
LogicalBodyTypes/LogicalBodyTypes.xml

So I wanted to start a new game after like 8 years and I got this after trying to run AIMNAS downloaded right from here 2 hours ago, here's the 1.13 version with all the details and the picture of the error.
Distribution Name: JA2_113-v1-18-g8ec02b2-GdcadL1f1a-English
Game Version: v1-18-g8ec02b2
Language: English
Build Information: 2023-08-23 GitHub 1dot13/source branch master
Source Repository: 1dot13/source
Source Commit SHA: 8ec02b2d40b0c81eb1e3a6a58188b384b0c8dae4
Source Commit Date: 2023-08-23T08:21:22+00:00
Gamedir Repository: 1dot13/gamedir
Gamedir Commit SHA: dcadd40dadbff71fbdd5d7fe3e77aca12899ecb1
Gamedir Commit Date: 2023-08-23T04:43:32+00:00
Gamedir Languages Repository: 1dot13/gamedir-languages
Gamedir Languages Commit SHA: 1f1a8c657e92d9873e259461da914ba52124136a
Gamedir Languages Commit Date: 2023-08-20T17:52:19+00:00
[4.21801] : ERROR : File : D:\a\source\source\Init.cpp
Line : 1454
Location : InitializeJA2
Loading external data failed
File : D:\a\source\source\Init.cpp
Line : 445
Location : LoadExternalGameplayData
LogicalBodyTypes/LogicalBodyTypes.xml