MBAMWebSiteInstaller.ps1 gives me error

Set-MachineUserOnSql : Unable to set permissions for machine on SQL server: Exception calling "GetHostByName" with "1" argument(s): "No such host is known"

At C:\Temp\MBAMWebSiteInstaller.ps1:1371 char:16

$success = Set-MachineUserOnSql + dockerfile ~~~~~~~~~~~~~~~~~~~~

  + CategoryInfo          : NotSpecified: (:) [Write-Error], WriteErrorException
    
  + FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException,Set-MachineUserOnSql
    
    
    
Install-MBAMWebSites : Failure setting machine account privileges on SQL

At C:\Temp\MBAMWebSiteInstaller.ps1:1520 char:5

+ ```powershell
Install-MBAMWebSites -SqlServerName $SqlServerName -SqlInstanceNa ...
```+ ```xml
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• CategoryInfo : NotSpecified: (:) [Write-Error], WriteErrorException
• FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException,Install-MBAMWebSites

I guess its because i use a custom SQL port have tried to run the command with SQLServerName,PORT, and the prameter IncludePortInSPN. but this doesnt even get the identification sertificate..