downgrade the last nonworking component

src/Web/WebStatus/Dockerfile

@@ -1,8 +1,8 @@
-FROM mcr.microsoft.com/dotnet/nightly/aspnet:6.0.0-preview.6 AS base
+FROM mcr.microsoft.com/dotnet/aspnet:5.0 AS base
 WORKDIR /app
 EXPOSE 80
 
-FROM mcr.microsoft.com/dotnet/nightly/sdk:6.0.100-preview.6 AS build
+FROM mcr.microsoft.com/dotnet/sdk:5.0 AS build
 WORKDIR /src
 
 # It's important to keep lines from here down to "COPY . ." identical in all Dockerfiles

src/Web/WebStatus/WebStatus.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
     <AssetTargetFallback>$(AssetTargetFallback);portable-net45+win8+wp8+wpa81;</AssetTargetFallback>
     <DockerComposeProjectPath>..\..\..\docker-compose.dcproj</DockerComposeProjectPath>
     <IsTransformWebConfigDisabled>true</IsTransformWebConfigDisabled>