New Post: Need help with error assigning SSL certs

Hi, I'm getting the following error when running the installer on Server 2012 with SP2013 patched with March 13 CU. Any ideas?

See details below:

• Creating web applications...
• Web app "MySite Host" already provisioned.
• Assigning certificate to site "https://mysites:443"
• Looking for existing "mysites" certificate...
• None found.
• Creating new self-signed certificate...
• Certificate "CN=mysites" found.
• Exporting "CN=mysites" to "mysites.cer"...
• Importing "mysites.cer" to Local Machine\Root...

- Assigning certificate "CN=mysites" to SSL-enabled site...

• Script halted!
  

Exception : System.ComponentModel.Win32Exception (0x80004005): Cannot create a file when that file already

                    exists
                       at Microsoft.IIs.PowerShell.Framework.HttpApi.CreateSSLBinding(IPEndPoint endPoint, String 
                    hostName, HTTP_SERVICE_CONFIG_SSL_PARAM_MANAGED allSSLData, SslFlags sslFlags)
                       at Microsoft.IIs.PowerShell.Framework.SslBindingFactory.CreateInstance(String name, String 
                    typeName, INamespaceNode parent, Object dynamicParameters, Object newObject, Boolean force, 
                    Boolean recurse, TypeManager tm, CmdletProvider provider)
                       at Microsoft.IIs.PowerShell.Provider.ConfigurationProvider.NewItem(String path, String 
                    itemTypeName, Object newItemValue)
                       at System.Management.Automation.SessionStateInternal.NewItemPrivate(CmdletProvider 
                    providerInstance, String path, String type, Object content, CmdletProviderContext context)

TargetObject :
CategoryInfo : NotSpecified: (:) [New-Item], Win32Exception
FullyQualifiedErrorId : System.ComponentModel.Win32Exception,Microsoft.PowerShell.Commands.NewItemCommand
ErrorDetails :
InvocationInfo : System.Management.Automation.InvocationInfo
ScriptStackTrace : at AssignCert, C:\SPInstall\AutoSPInstaller\AutoSPInstallerFunctions.ps1: line 1709

                    at CreateWebApp, C:\SPInstall\AutoSPInstaller\AutoSPInstallerFunctions.ps1: line 1813
                    at CreateWebApplications, C:\SPInstall\AutoSPInstaller\AutoSPInstallerFunctions.ps1: line 1732
                    at Setup-Farm, C:\SPInstall\AutoSPInstaller\AutoSPInstallerMain.ps1: line 159
                    at <ScriptBlock>, C:\SPInstall\AutoSPInstaller\AutoSPInstallerMain.ps1: line 321
                    at <ScriptBlock>, <No file>: line 1

PipelineIterationInfo : {}
PSMessageDetails :