Microsoft SharePoint Foundation Subscription Settings Service Application stuck on "Starting" - sharepoint

Question

Creating "Microsoft SharePoint Foundation Subscription Service" in SharePoint 2016 Server by using Power-shell command but it stuck at below line and not responding.
$ServiceApplication = New-SPSubscriptionSettingsServiceApplication –ApplicationPool $AppPoolName –Name $ServiceAppName –DatabaseName $DatabaseName –DatabaseServer $DatabaseServer
When we check the status of Services in Central Admin > Manager Services its showing status "Starting".
While status showing as "Starting" we can see the Database is already created in DB server.
we are using SharePoint 2016 and want to create Apps for SharePoint. Next step is to configure App Management Service Application. Not sure if App Management and Subscription Services are depending on each other.

Answer 1

Can you try to delete the existing service application and create using below Powershell Script
In this please provide $accountName in the variable and share me the results
Powershell
===========================
$serviceTypeName = "Microsoft SharePoint Foundation Subscription Settings Service"
$accountName = "Account Name in the Format domain\user"
$appPool = "subs_pool"
$serviceName = "Subscription Settings Service"
$serviceDB = "Subscription_Settings_Service"
$service = Get-SPServiceInstance | where { $_.TypeName -eq $serviceTypeName }
Start-SPServiceInstance $service
Write-Host "Service instance started."
# Gets the name of the managed account and sets it to the variable $account for later use.
$account = Get-SPManagedAccount $accountName
$appPoolSubSvc = Get-SPServiceApplicationPool $appPool
if ($appPoolSubSvc -eq $null)
{
# Creates an application pool for the Subscription Settings service application.
# Uses a managed account as the security account for the application pool.
# Stores the application pool as a variable for later use.
$appPoolSubSvc = New-SPServiceApplicationPool -Name $appPool -Account $account
}
Write-Host "Have the application pool..."
# Creates the Subscription Settings service application, using the variable to associate it with the application pool that was created earlier.
# Stores the new service application as a variable for later use.
$appSubSvc = New-SPSubscriptionSettingsServiceApplication –ApplicationPool $appPoolSubSvc –Name $serviceName –DatabaseName $serviceDB
Write-Host "Service application created..."
# Creates a proxy for the Subscription Settings service application.
$proxySubSvc = New-SPSubscriptionSettingsServiceApplicationProxy –ServiceApplication $appSubSvc
Write-Host "Service application proxy created..."
Write-Host -ForegroundColor green "Done."