diff --git a/server/Test/AppTestClass.php b/server/Test/AppTestClass.php
index 311b9bf..40a5847 100755
--- a/server/Test/AppTestClass.php
+++ b/server/Test/AppTestClass.php
@@ -1,6 +1,12 @@
 <?php
 include_once("../core/Plugin_Api.php");
 include_once("../core/LibOverride/genTokenOptions.php");
+include_once("../core/ErrorManagement.php");
+
+use OpenStack\Common\Error\BadResponseError;
+use OpenStack\Common\Error\BaseError;
+use OpenStack\Common\Error\NotImplementedError;
+use OpenStack\Common\Error\UserInputError;
 
 class AppTest{
 	
@@ -9,6 +15,7 @@ class AppTest{
 	protected $tokenClass;
 	protected $tokenPost;
 	protected $output;
+	protected $errorClass;
 
 	public function __construct($args){
 
@@ -17,6 +24,7 @@ class AppTest{
 		$this->openstack = new OpenStack\OpenStack([]);
 		$this->pluginsApi = plugin_api::getInstance();
 		$this->output = array();
+		$this->errorClass = new errorManagement($this);
 
 	}
 	
@@ -70,4 +78,9 @@ class AppTest{
 		echo json_encode($this->output);
 	}
 	
+	public function getErrorInstance(){
+		
+		return $this->errorClass;
+		
+	}
 }
\ No newline at end of file
diff --git a/server/core/Image.php b/server/core/Image.php
index 15facc9..bc4834a 100644
--- a/server/core/Image.php
+++ b/server/core/Image.php
@@ -9,8 +9,11 @@
 * 
 * @todo Complete the functions with errors detection and finish the descriptions
 */
-use OpenStack\Common\Error; 
- 
+use OpenStack\Common\Error\BadResponseError;
+use OpenStack\Common\Error\BaseError;
+use OpenStack\Common\Error\NotImplementedError;
+use OpenStack\Common\Error\UserInputError;
+
 /**
 * Image Class of the back-end application
 *
@@ -190,8 +193,7 @@ class image {
 			$service = $this->libClass;
 			$service->getImage($id)->delete();
 		}catch(BadResponseError $e){
-			echo "YOLO";
-			$this->app->getErrorInstance->BadResponseHandler($e);
+			$this->app->getErrorInstance()->BadResponseHandler($e);
         }catch(UserInputError $e){
 			$this->app->getErrorInstance->UserInputHandler($e);
         }catch(BaseError $e){