Error class was not able to remove errors - thanks scripple for repor…

…ting

Signed-off-by: emanuele <emanuele45@gmail.com>

sources/Errors.class.php

@@ -124,7 +124,7 @@ public function removeError($error)
 				$error = $error[0];
 
 			foreach ($this->_errors as $severity => $errors)
-				if (in_array($error, $errors))
+				if (array_key_exists($error, $errors))
 					unset($this->_errors[$severity][$error]);
 		}
 	}