How to add add-on sound files

when i try to add a new sound i get this error and game crashes
fxmanifest.lua (767 Bytes)
[Window Title]
Error FiveM_b2372_GTAProcess.exe!sub_14128BF2C (0x5)

[Main Instruction]
FiveM has encountered an error
i get this error code and there is my fxmanifest.lua
[Content]
An exception occurred (c0000005 at 0x7ff6b090bf31) during loading of resources:/lfasound/audioconfig/rb26dett_game.dat in data file mounter class audMetadataDataFileMounter. The game will be terminated.

[Expanded Information]
Error uploading: HTTP 0
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Hello!

I made a guide on how you could get custom sound files loaded by FiveM.

I don’t know in how far this still applies but it’s worth a shot!