Mods are used in this savegame.
FS25_International_Transstar_ByZladdi76
FS25_AGCO_LargeFrame/series9700
FS25_johnDeerePlanter1775NT
FS25_AK_superChisel_pflug
Placeables
Rm_Mod/sign.xml
ATC25_YardSignPack
I stopped searching. There may be some buildings also, not sure.
To possibly fix this get rid of the mods in the vehicles.xml or download them. Open the vehicles xml in the zip search for $moddir then you can find all the mods used in this savegame. Search vehicle.xml and placeables.xml