Integrate Excavator API causes error if Excavator is only miner
Is ist just me?

Since
https://github.com/MultiPoolMiner/MultiPoolMiner/commit/a0857c0757ac2577df7c2631e31d746383d5a442

 on first run I get the following errors:

```
PS>TerminatingError(Get-Process): "Cannot validate argument on parameter 'Name'. The argument is null, empty, or an element of the argument collection contains a null value. Supply a collection that does not contain any null values and then try the command again."
Get-Process : Cannot validate argument on parameter 'Name'. The argument is null, empty, or an element of the argument 
collection contains a null value. Supply a collection that does not contain any null values and then try the command 
again.
At C:\Users\UselessGuru\Desktop\NewPoc\MultiPoolMiner.ps1:616 char:23
+ ... ocess -Name @($ActiveMiners | ForEach-Object {$_.GetProcessNames()})  ...
+                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidData: (:) [Get-Process], ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationError,Microsoft.PowerShell.Command
PS>TerminatingError(Get-Process): "Cannot validate argument on parameter 'Name'. The argument is null, empty, or an element of the argument collection contains a null value. Supply a collection that does not contain any null values and then try the command again."
Get-Process : Cannot validate argument on parameter 'Name'. The argument is null, empty, or an element of the argument 
collection contains a null value. Supply a collection that does not contain any null values and then try the command 
again.
At C:\Users\UselessGuru\Desktop\NewPoc\MultiPoolMiner.ps1:616 char:23
+ ... ocess -Name @($ActiveMiners | ForEach-Object {$_.GetProcessNames()})  ...
+                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidData: (:) [Get-Process], ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationError,Microsoft.PowerShell.Command
```