Assetto Corsa Launcher error

[Albert-S70]

hello i got an error this is it i got the game saved in C: so i dont know that is the problem. (sorry for bad english), ( Assetto Corsa launcher error. An unforseen event has caused the Assetto Corsa Launcher to retire from race. A memory dump and log files have been generated in: C:\Users\Eigenaar\Documents\Assetto Corsa\logs\ . Would you like to send these to a mechanics? it might take a minute to collect and compress the data. )
this is my error what i need to do pleas help me

[Albert-S70]

This is my Launcher log :
AC Launcher ver. 0.14.524.3990
5/26/2014 12:10:06 AM > started
Running on: Microsoft Windows NT 6.2.9200.0
Searching for .config at: AssettoCorsa.exe -> D:\SteamLibrary\steamapps\common\assettocorsa\AssettoCorsa.exe.config
Current Culture: en-US / en-US
Length:0
assembly loading: CEF3.dll
Loading D:\SteamLibrary\steamapps\common\assettocorsa\launcher\support\CEF3.dll
assembly loading: Atmos.dll
Loading D:\SteamLibrary\steamapps\common\assettocorsa\launcher\support\Atmos.dll
Steam ID: 76561198136580738
assembly loading: AC.CEF3.dll
Loading D:\SteamLibrary\steamapps\common\assettocorsa\launcher\support\AC.CEF3.dll
OnBeforeCommandLineProcessing - switches: 9 - args: 1
OnBeforeCommandLineProcessing - valid commandline: True
lang=en-US
log-file=C:\Users\Eigenaar\Documents\Assetto Corsa\logs\launcher_debug.log
log-severity=info
no-sandbox=
remote-debugging-port=30150
user-agent=Assetto Corsa Launcher
Cefsettings:
App Language set to:
App Language set to: en
Locale Dictionary Initialized
App exitcode: -1
Hardware acceleration: True

Error >>> 5/26/2014 12:10:07 AM
System.BadImageFormatException
Message:Kan bestand of assembly WindowsFormsIntegration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 of een van de afhankelijkheden hiervan niet laden. Er wordt verwacht dat de module een assembly-manifest zou bevatten.
TargetSite: Void .ctor(Boolean)
Source:AssettoCorsa
StackTrace: at AC.Launcher.MainWindow..ctor(Boolean softwaremode)
at AC.Launcher.Startup.Main(String[] args)
InnerException:

<<< Error

[Albert-S70]

oh and yes i reinstall the game and let steam check my files and restart computer just the basic stuff but no results

[Albert-S70]

{リンクが削除されました}http://www.mediafire.com/convkey/ff46/zp0y9t1rmz4llf0fg.jpg?size_id=6

[s3rial4k1ll]

hab das gleiche problem windows 8.1

[Albert-S70]

8.0

[quf]

Have you fixed it? If not, did you completely install all windows updates to 8.1 + update 1

[Albert-S70]

cant update it and problem not fixed

[issue]

Same problem here. Can´t Play AC anymore because the launcher Crashs after every race...