Add an exception being thrown when proxmox return status_code >= 400

src/Exception/BadResponseException.php

@@ -0,0 +1,7 @@
+<?php
+
+ namespace ProxmoxVE\Exception;
+
+class BadResponseException extends \RuntimeException
+{
+}

src/Proxmox.php

@@ -14,6 +14,7 @@
 use GuzzleHttp\Psr7\Request;
 
 use ProxmoxVE\Exception\AuthenticationException;
+use ProxmoxVE\Exception\BadResponseException;
 
 /**
  * ProxmoxVE class. In order to interact with the proxmox server, the desired
@@ -154,6 +155,10 @@ private function processHttpResponse($response)
             return null;
         }
 
+        if($response->getStatusCode() >= 400) {
+            throw new BadResponseException($response->getReasonPhrase());
+        }
+
         switch ($this->fakeType) {
             case 'pngb64':
                 $base64 = base64_encode($response->getBody());