Update Copy-RsSubscription.ps1

Removed throw keyword from catch block so that Process loop could continue trying to copy additional subscriptions in pipeline.

Author: SQLvariant

ReportingServicesTools/Functions/CatalogItems/Copy-RsSubscription.ps1

@@ -147,7 +147,7 @@ function Copy-RsSubscription
         }
         catch
         {
-            throw (New-Object System.Exception("Exception occurred while creating subscription! $($_.Exception.Message)", $_.Exception))
+            "Error occurred while creating subscription $($subscriptionId)! $($_.Exception.Message)"
         }
     }
 }