Error when building iOS project with Tapjoy

Win32Exception: ApplicationName='python2.7', CommandLine='"C:/Users/fmo08/Documents/Goat_IOS/Assets\Tapjoy/Editor/PostBuild/TapjoyIosPostBuild.pyc" "C:/Users/fmo08/Desktop/GRIOS" "C:/Users/fmo08/Documents/Goat_IOS/Assets\Plugins/iOS" "5.5.2f1"', CurrentDirectory='' System.Diagnostics.Process.Start_noshell (System.Diagnostics.ProcessStartInfo startInfo, System.Diagnostics.Process process) System.Diagnostics.Process.Start_common (System.Diagnostics.ProcessStartInfo startInfo, System.Diagnostics.Process process) System.Diagnostics.Process.Start () (wrapper remoting-invoke-with-check) System.Diagnostics.Process:Start () TapjoyEditor.BuildPostProcessor.onIosPostProcessBuild (BuildTarget target, System.String pathToBuiltProject) UnityEditor.HostView:OnGUI()

I got the error above when trying to build iOS project with Tapjoy plugin (no error with Android). I still can build the project with xcode but Tapjoy is no longer work.

Any help please?