Cannot bind argument to parameter 'alertUid' because it is null

[burtonmsp]

Hi,
Having an issue with live alerts as shown below.

If I replace the Datto code [alert_uid] with the ID of an active alert and run a test, it works fine.

PositionMessage : At C:\home\site\wwwroot\Modules\CoreHelper.psm1:372 char:38
+ $Alert = Get-DrmmAlert -alertUid $AlertID
+ ~~~~~~~~
PSScriptRoot : C:\home\site\wwwroot\Modules
PSCommandPath : C:\home\site\wwwroot\Modules\CoreHelper.psm1
CommandOrigin : Internal
ScriptStackTrace : at Get-AlertEmailBody, C:\home\site\wwwroot\Modules\CoreHelper.psm1: line 372
at , C:\home\site\wwwroot\Receive-Alert\run.ps1: line 10

Exception: Cannot bind argument to parameter 'alertUid' because it is null.