Crash at start when offline

SEToolbox Version: 01.191.20 Release 2
SE Version: 1.191.1

SEToolbox crashed

Tried to launch SEToolbox after install from .msi

Steps to Reproduce

1. Make internet inaccessible, go offline, or block SEToolbox on the firewall
2. Start SEToolbox

SEToolbox Event Log

2019-06-20 13:27:56,443 [1] FATAL SEToolbox.Support.DiagnosticsLogging [(null)] - Unhandled Exception
Application: C:\Program Files (x86)\Steam\steamapps\common\SpaceEngineers\Tools\Toolbox\SEToolbox.exe
CommandLine: "C:\Program Files (x86)\Steam\steamapps\common\SpaceEngineers\Tools\Toolbox\SEToolbox.exe"
CurrentDirectory: C:\Program Files (x86)\Steam\steamapps\common\SpaceEngineers\Tools\Toolbox
SEBinPath:
SEBinVersion:
ProcessorCount: 8
OSVersion: Microsoft Windows NT 6.2.9200.0
Version: 4.0.30319.42000
Is64BitOperatingSystem: True
IntPtr.Size: 8
IsAdmin: False
CurrentUICulture: en-US
CurrentCulture: hu-HU
Times started total:
Times started since last reset:
Times started since game update:

Files:
2017-06-01T23:49:11.8637547+02:00 498 176 2014.2.17.1 HelixToolkit.Wpf.dll
2017-03-08T09:26:22.0000000+01:00 276 480 2.0.8.0 log4net.dll
2018-09-08T16:31:30.0000000+02:00 911 360 0.32.0.0 Octokit.dll
2019-06-18T17:56:48.0000000+02:00 1 327 616 01.191.20.2 SEToolbox.exe
2017-06-01T23:49:11.8907658+02:00 745 SEToolbox.exe.config
2019-02-28T20:56:47.3352625+01:00 62 464 1.0.0.0 SEToolbox.ImageLibrary.dll
2019-02-28T20:56:47.6886315+01:00 7 680 1.0.0.0 SEToolbox.ImageShaders.dll
2019-02-28T20:56:51.3625238+01:00 2 248 192 SEToolbox.pdb
2019-02-28T20:56:46.7843096+01:00 53 248 1.0.0.0 SEToolboxUpdate.exe
2013-03-09T08:25:10.0000000+01:00 39 936 2.0.20525.0 System.Windows.Interactivity.dll
2018-03-27T06:51:20.0000000+02:00 77 824 3.0.1.0 WPFLocalizeExtension.dll
2018-01-08T11:35:48.0000000+01:00 27 648 1.2.2 XAMLMarkupExtensions.dll

System.AggregateException: One or more errors occurred. ---> System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: An attempt was made to access a socket in a way forbidden by its access permissions 140.82.118.5:443
at System.Net.Sockets.Socket.InternalEndConnect(IAsyncResult asyncResult)
at System.Net.Sockets.Socket.EndConnect(IAsyncResult asyncResult)
at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception)
--- End of inner exception stack trace ---
at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
at System.Net.Http.HttpClientHandler.GetResponseCallback(IAsyncResult ar)
--- End of inner exception stack trace ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Octokit.Internal.HttpClientAdapter.d__10.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Octokit.Internal.HttpClientAdapter.d__3.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Octokit.Connection.d__58.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Octokit.Connection.d__571.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Octokit.ApiConnection.<Get>d__81.MoveNext()
--- End of inner exception stack trace ---
at System.Threading.Tasks.Task1.GetResultCore(Boolean waitCompletionNotification) at SEToolbox.Support.CodeRepositoryReleases.CheckForUpdates(Version currentVersion, Boolean dontIgnore) at SEToolbox.App.OnStartup(Object sender, StartupEventArgs e) at System.Windows.Application.OnStartup(StartupEventArgs e) at System.Windows.Application.<.ctor>b__1_0(Object unused) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) ---> (Inner Exception #0) System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: An attempt was made to access a socket in a way forbidden by its access permissions 140.82.118.5:443 at System.Net.Sockets.Socket.InternalEndConnect(IAsyncResult asyncResult) at System.Net.Sockets.Socket.EndConnect(IAsyncResult asyncResult) at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception) --- End of inner exception stack trace --- at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult) at System.Net.Http.HttpClientHandler.GetResponseCallback(IAsyncResult ar) --- End of inner exception stack trace --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Octokit.Internal.HttpClientAdapter.<SendAsync>d__10.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Octokit.Internal.HttpClientAdapter.<Send>d__3.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Octokit.Connection.<RunRequest>d__58.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Octokit.Connection.<Run>d__571.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Octokit.ApiConnection.d__8`1.MoveNext()<---