Strange problem

Hi, where is the problem?

My Code:

Param
(
    [String]$hvHost
)

set-item wsman:\localhost\Client\TrustedHosts -value $hvHost -Force
$password = ConvertTo-SecureString "xxxxx" -AsPlainText -Force
$user = "LAIAUTO\support"
$cred = New-Object System.Management.Automation.PSCredential ($user,$password)
$s = New-PSSession -ComputerName $hvHost -Credential $cred

Invoke-Command -Session $s{

# -----------------------

$CurrentDate = (Get-Date)

$Results = Get-VMReplication | Select VMName, VMId, ReplicationMode, ReplicationHealth, ComputerName,`
                                             PrimaryServer, ReplicaServer, LastReplicationTime, ReplicationState `
                                             | Where-Object ReplicationMode -eq "Primary"


$xmlstring = "<?xml version=`"1.0`"?>`n    <prtg>`n"

ForEach ($eachresult IN $Results) {

$TotalMinutes = (New-Timespan –Start $eachresult.LastReplicationTime –End $CurrentDate).TotalMinutes

$xmlstring += "    <result>`n"
$xmlstring += "        <channel>$($eachresult.VMname)</channel>`n"
$xmlstring += "        <unit>Custom</unit>`n"
$xmlstring += "        <CustomUnit>min</CustomUnit>`n"
$xmlstring += "        <mode>Absolute</mode>`n"
$xmlstring += "        <showChart>1</showChart>`n"
$xmlstring += "        <showTable>1</showTable>`n"
$xmlstring += "        <float>0</float>`n"
$xmlstring += "        <value>$(IF ($TotalMinutes -lt 1) {"0"} ELSE {IF ($TotalMinutes -le 60) {$TotalMinutes.ToString("#")} ELSE {"60"}})</value>`n"
$xmlstring += "        <LimitMaxError>59</LimitMaxError>`n"
$xmlstring += "        <LimitMaxWarning>20</LimitMaxWarning>`n"
$xmlstring += "        <LimitWarningMsg>Hyper-V Replication for this VM is in Warning state</LimitWarningMsg>`n"
$xmlstring += "        <LimitErrorMsg>Hyper-V Replication failed for this VM and is in Critical state</LimitErrorMsg>`n"
$xmlstring += "        <LimitMode>1</LimitMode>`n"
$xmlstring += "    </result>`n"

 }

$xmlstring += "    </prtg>"

Write-Host $xmlstring
}


If I run this on PS console work fine
PS C:\Program Files (x86)\PRTG Network Monitor\Custom Sensors\EXEXML> .\Replica.ps1 -hvHost 10.55.55.137
<?xml version="1.0"?>
    <prtg>
    <result>
        <channel>VM2019OR-01 (SALONE)</channel>
        <unit>Custom</unit>
        <CustomUnit>min</CustomUnit>
        <mode>Absolute</mode>
        <showChart>1</showChart>
        <showTable>1</showTable>
        <float>0</float>
        <value>2</value>
        <LimitMaxError>59</LimitMaxError>
        <LimitMaxWarning>20</LimitMaxWarning>
        <LimitWarningMsg>Hyper-V Replication for this VM is in Warning state</LimitWarningMsg>
        <LimitErrorMsg>Hyper-V Replication failed for this VM and is in Critical state</LimitErrorMsg>
        <LimitMode>1</LimitMode>
    </result>
    </prtg>

But my PRTG server send me error

Sensor XML Custom EXE/Script Sensor

XML: The returned XML does not match the expected schema. (code: PE233) -- JSON: The returned JSON does not match the expected structure (No mapping for the Unicode character exists in the target multi-byte code page). (code: PE231)

And log file is:

A command that prompts the user for information failed because the host program or command type does not support user interactions. Try a host program that supports such interactions, such as the Windows PowerShell console or Windows PowerShell ISE, and remove prompt-related commands from command types that don't support user interactions, such as Windows PowerShell workflows.

Whre is the problem????? Ty

exe-xml ps script