Hello, I can't open a widget blueprint. It's impossible.

More specifically, here is the error message I get when I try to open a widget blueprint: When attempting to load the package /Game/Sounds/Fort_Audio_Blueprints/Utilities/MacroLibraries/AudioAssetAction_MacroLibrary, a dependent package /Game/Sounds/Fort_Audio_Blueprints/Utilities/AssetActions/AudioAssetActionBase (10BCA1F85C2FD985) was not available. Additional explanations are provided below:

FPackageName: Skipped package /Game/Sounds/Fort_Audio_Blueprints/Utilities/AssetActions/AudioAssetActionBase has a valid, mounted mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at ‘C:/Program Files/Epic Games/Fortnite/FortniteGame/Content/Sounds/Fort_Audio_Blueprints/Utilities/AssetActions/AudioAssetActionBase’. Perhaps it has been deleted or was not synced?
I uninstalled and reinstalled Fortnite and UEFN, and it still doesn’t work. I checked all the files, and it still doesn’t work. I spent more than 5 hours with Epic Games’ artificial intelligence, and it gave me lots of steps to follow to fix it, but nothing works. Unfortunately, I need help, please.