Master of Magic - Critical Error when starting the Game (GoG Version)

[DarkVoidMage]

I recently bought and installed Master of Magic with all the DLCs, but when starting the game, it always causes a critical error (If its relevant, i am trying to play it on Win10).

Edit: (i have attached a screenshot, but for whatever reason, it doesnt want to show it, so i am using a quick online image uploader and a link to said picture, sorry for the inconvinience)
Error Screenshot

Edit2: Looking in my log-file, it gives following errors:

[[Error]12.01.2025 15:17:21
Unable to read header from archive file: Z:/Games/GOG Galaxy/MuHa Master of Magic/MoM_Data/StreamingAssets/AssetBundles/ab_2dicons.manifest
CRITICAL POINT: 1

[Error]12.01.2025 15:17:21
Failed to read data for the AssetBundle 'StreamingAssets\AssetBundles\ab_2dicons.manifest'.
CRITICAL POINT: 2

[Error]12.01.2025 15:17:21
NullReferenceException: Object reference not set to an instance of an object
CRITICAL POINT: 3

[Warning]12.01.2025 15:17:24
Missing audio library!