While trying to download symbols in BC 16 with Al language v5.0

[VishnuVelmurugan]

Processing of message 'al/downloadSymbols' failed with error: 'Object reference not set to an instance of an object.'
Details:
System.NullReferenceException: Object reference not set to an instance of an object.
at Microsoft.Dynamics.Nav.EditorServices.Protocol.LanguageServer.Extensions.DownloadSymbolsRequestHandler.ProcessRequestAsync(DownloadSymbolsRequest request, Int32 requestId, CancellationToken cancellationToken) in D:\a\1\s\source\Prod\Microsoft.Dynamics.Nav.EditorServices.Protocol\LanguageServer\Extensions\DownloadSymbolsRequestHandler.cs:line 45
at Microsoft.Dynamics.Nav.EditorServices.Protocol.LanguageServer.Extensions.NavServerRequestHandler1.HandleAsync(T request, Int32 requestId, CancellationToken cancellationToken) in D:\a\1\s\source\Prod\Microsoft.Dynamics.Nav.EditorServices.Protocol\LanguageServer\Extensions\NavServerRequestHandler.cs:line 38 at Microsoft.Dynamics.Nav.EditorServices.Protocol.MessageProtocol.RequestHandlerBase1.HandleAsync(JToken requestContents, Int32 requestId, CancellationToken cancellationToken) in D:\a\1\s\source\Prod\Microsoft.Dynamics.Nav.EditorServices.Protocol\MessageProtocol\RequestHandlerBase.cs:line 54
at Microsoft.Dynamics.Nav.EditorServices.Protocol.RequestRegistry.Process(Message message) in D:\a\1\s\source\Prod\Microsoft.Dynamics.Nav.EditorServices.Protocol\Endpoints\RequestRegistry.cs:line 80

launch Json provided

{
"version": "0.2.0",
"configurations": [
{
"type": "al",
"request": "launch",
"name": "Your own server",
"server": "http://localhost",
"serverInstance": "BC160",
"authentication": "UserPassword",
"startupObjectId": 22,
"startupObjectType": "Page",
"breakOnError": true,
"launchBrowser": true,
"enableLongRunningSqlStatements": true,
"enableSqlInformationDebugger": true
}
]
}

Al language Version: Version 5.0.465995

Version: US Business Central 16.0 (Platform 16.0.11233.31159 + Application 16.0.11240.31204)