Created Unassigned: Error sp2016 null-valued [22222]

- Granting DOMAIN\SPADMIN rights to "Portal Home"...--------------------------------------------------------------
- Script halted!


Exception : System.Management.Automation.RuntimeException: You cannot call a method on a null-valued
expression.
at System.Management.Automation.ExceptionHandlingOps.CheckActionPreference(FunctionContext
funcContext, Exception exception)
at System.Management.Automation.Interpreter.ActionCallInstruction`2.Run(InterpretedFrame
frame)
at
System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame
frame)
at
System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame
frame)
TargetObject :
CategoryInfo : InvalidOperation: (:) [], RuntimeException
FullyQualifiedErrorId : InvokeMethodOnNull
ErrorDetails :
InvocationInfo : System.Management.Automation.InvocationInfo
ScriptStackTrace : at CreateWebApp, D:\AutoSPInstaller\SP\AutoSPInstaller\AutoSPInstallerFunctions.ps1: line 2810
at CreateWebApplications, D:\AutoSPInstaller\SP\AutoSPInstaller\AutoSPInstallerFunctions.ps1:
line 2670
at Setup-Farm, D:\AutoSPInstaller\SP\AutoSPInstaller\AutoSPInstallerMain.ps1: line 211
at <ScriptBlock>, D:\AutoSPInstaller\SP\AutoSPInstaller\AutoSPInstallerMain.ps1: line 410
at <ScriptBlock>, <No file>: line 1
PipelineIterationInfo : {}
PSMessageDetails :