This game is not encrypted, so you can directly export models using umodel. However, this game uses virtual textures. Virtual textures are not supported in umodel.
I think I need to obtain usmap files to extract files in fmodel. I tried Dumper-7, RE-UE4SS, and UnrealMappingsDumper, but none of them worked.

When I use ue4ss and open the game, the console shows:

[17:57:02] [PS] Failed to find FText::FText(FString&&): expected at least one value
[17:57:02] [PS] You can supply your own AOB in 'UE4SS_Signatures/FText_Constructor.lua'
[17:57:02] [PS] Scan failed

The documentation of ue4ss explains how to fix AOB, but it’s a bit difficult for me to understand. https://docs.ue4ss.com/guides/fixing-compatibility-problems.html

The mapping file is already publicly available for that game, Avowed is the first time I haven't been able to find one to download so I just did it myself with UE4SS by following the guide and had no problems so I have no idea how to approach that error.