Version 5.4 does not start, it gives an error. Help me fix it?

Development Getting Started & Setup
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2

hi @Vazilline
Unreal Zen Server is experimental and needs to be disabled

In the file C:\Program Files\Epic Games\UE_5.4\Engine\Config\BaseGame.ini
change the line in the section from

[/Script/UnrealEd.ProjectPackagingSettings]
bUseZenStore=true

To

[/Script/UnrealEd.ProjectPackagingSettings]
bUseZenStore=false

delete the section (if it exists)
[Zen.AutoLaunch]
DataPath=%APPSETTINGSDIR%Zen/Data
LocalDataCachePathEnvOverride=UE-LocalDataCachePath
LocalDataCachePathEditorOverrideSetting=LocalDerivedDataCache
ExtraArgs=–http asio --gc-cache-duration-seconds 2937600 --gc-interval-seconds 21600

from the file
C:\Users\Адмін\Documents\Unreal Projects\Config\MyProject\DefaultGame.ini

change the line in the section from

[/Script/UnrealEd.ProjectPackagingSettings]
bUseZenStore=true

To

[/Script/UnrealEd.ProjectPackagingSettings]
bUseZenStore=false

delete the section (if it exists)
[Zen.AutoLaunch]
DataPath=%APPSETTINGSDIR%Zen/Data
LocalDataCachePathEnvOverride=UE-LocalDataCachePath
LocalDataCachePathEditorOverrideSetting=LocalDerivedDataCache
ExtraArgs=–http asio --gc-cache-duration-seconds 2937600 --gc-interval-seconds 21600

The full description of Zen Server setting is in documentation

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