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I can fixed this issue by use dotnet command to check what is error from command
use windows powershell and run this command
dotnet "C:\Program Files (x86)\aras\Innovator\OAuthServer\bin\Aras.OAuth.Server.dll"
in may case it reply
You must install or update .NET to run this application.
App: C:\Program Files (x86)\aras\Innovator\OAuthServer\bin\Aras.OAuth.Server.dll
Architecture: x64
Framework: 'Microsoft.NETCore.App', version '2.1.30' (x64)
.NET location: C:\Program Files\dotnet\
The following frameworks were found:
2.1.8 at [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
5.0.17 at [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
6.0.9 at [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Learn about framework resolution:
aka.ms/.../app-launch-failed
To install missing framework, download:
https://aka.ms/dotnet-core-applaunch?framework=Microsoft.NETCore.App&framework_version=2.1.30&arch=x64&rid=win10-x64
then you need to install the missing framework.
In my case, the 502 Bad Gateway error was solved by re-installing https://aka.ms/dotnet-core-applaunch?framework=Microsoft.NETCore.App&framework_version=2.1.30&arch=x64&rid=win10-x64
Thank you to kriengsak.