Non fatal error with new balances when API is unavailable
```
WARNING: Pool API (Zpool) returned nothing.
Method invocation failed because [System.Management.Automation.PSObject] does not contain a method named 'op_Addition'.
At C:\Users\miner\Desktop\Miner\Include.psm1:21 char:5
+     $Balances += [PSCustomObject]@{
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (op_Addition:String) [], RuntimeException
    + FullyQualifiedErrorId : MethodNotFound
```

I assume this error occurs because it has a null or empty balance returned from the Zpool API