diff --git a/.version b/.version
index 825db90..c3317ad 100644
--- a/.version
+++ b/.version
@@ -1 +1 @@
-0.4.5.8
\ No newline at end of file
+0.4.5.9
\ No newline at end of file
diff --git a/README.md b/README.md
index 312acfe..ef54f4f 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ Due to the popularity of the library, I've decided to list it publicly on the Pi
 So, the installation is as simple as typing the following command:
 
 ```bash
-pip install meross_iot==0.4.5.8
+pip install meross_iot==0.4.5.9
 ```
 
 ## Usage & Full Documentation
@@ -190,8 +190,9 @@ Anyway, feel free to contribute via donations!
 </p>
 
 ## Changelog
-#### 0.4.5.8
+#### 0.4.5.9
 - Improve meross_sniffer utility: add support to collect messages spoofing the hardware device on meross cloud.
+- Allow string namespace value for execute_command within manager.
 
 <details>
     <summary>Older</summary>
diff --git a/meross_iot/manager.py b/meross_iot/manager.py
index 8cfbba6..45893b2 100644
--- a/meross_iot/manager.py
+++ b/meross_iot/manager.py
@@ -791,7 +791,7 @@ async def async_execute_cmd(
             mqtt_port: int,
             destination_device_uuid: str,
             method: str,
-            namespace: Namespace,
+            namespace: Union[Namespace, str],
             payload: dict,
             timeout: float = DEFAULT_COMMAND_TIMEOUT,
             override_transport_mode: TransportMode = None
@@ -855,7 +855,7 @@ async def _async_execute_cmd_http(self,
                                       device_ip: str,
                                       destination_device_uuid: str,
                                       method: str,
-                                      namespace: Namespace,
+                                      namespace: Union[Namespace,str],
                                       payload: dict,
                                       timeout: float = 10.0):
         # Send the message over the network
@@ -921,7 +921,7 @@ async def _notify_connection_drop(self):
             pushn = OnlinePushNotification(originating_device_uuid=d.uuid, raw_data={'online': {'status': -1}})
             await self._handle_and_dispatch_push_notification(pushn)
 
-    def _build_mqtt_message(self, method: str, namespace: Namespace, payload: dict, destination_device_uuid: str):
+    def _build_mqtt_message(self, method: str, namespace: Union[Namespace, str], payload: dict, destination_device_uuid: str):
         """
         Sends a message to the Meross MQTT broker, respecting the protocol payload.
 
@@ -951,12 +951,16 @@ def _build_mqtt_message(self, method: str, namespace: Namespace, payload: dict,
         md5_hash.update(strtohash.encode("utf8"))
         signature = md5_hash.hexdigest().lower()
 
+        if not isinstance(namespace, Namespace) and not isinstance(namespace, str):
+            raise ValueError("Namespace parameter must be a Namespace enum or a string.")
+        namespace_val = namespace.value if isinstance(namespace, Namespace) else namespace
+
         data = {
             "header": {
                 "from": self._client_response_topic,
                 "messageId": messageId,  # Example: "122e3e47835fefcd8aaf22d13ce21859"
                 "method": method,  # Example: "GET",
-                "namespace": namespace.value,  # Example: "Appliance.System.All",
+                "namespace": namespace_val,  # Example: "Appliance.System.All",
                 "payloadVersion": 1,
                 "sign": signature,  # Example: "b4236ac6fb399e70c3d61e98fcb68b74",
                 "timestamp": timestamp,
diff --git a/utilities/meross_sniffer.py b/utilities/meross_sniffer.py
index 956dc37..0fdf4b7 100644
--- a/utilities/meross_sniffer.py
+++ b/utilities/meross_sniffer.py
@@ -222,18 +222,22 @@ async def _async_sniff(device_sniffer: FakeDeviceSniffer, zip_obj: ZipFile, mero
 
             # Attempt now to retrieve a response simulating that command to the real device
             print("Replicating the same message to the device in order to catch the real response...")
-            response = await meross_manager.async_execute_cmd(
-                mqtt_hostname=selected_device.get_mqtt_host(),
-                mqtt_port=selected_device.get_mqtt_port(),
-                destination_device_uuid=selected_device.uuid,
-                method=method,
-                namespace=Namespace(namespace),
-                payload=payload,
-                timeout=5.0,
-                override_transport_mode=TransportMode.MQTT_ONLY
-            )
-            f.write(f"\nResponse: \n")
-            f.write(json.dumps(response))
+            try:
+                response = await meross_manager.async_execute_cmd(
+                    mqtt_hostname=selected_device.get_mqtt_host(),
+                    mqtt_port=selected_device.get_mqtt_port(),
+                    destination_device_uuid=selected_device.uuid,
+                    method=method,
+                    namespace=namespace,
+                    payload=payload,
+                    timeout=5.0,
+                    override_transport_mode=TransportMode.MQTT_ONLY
+                )
+                f.write(f"\nResponse: \n")
+                f.write(json.dumps(response))
+            except Exception as e:
+                l.exception("An error occurred while collecting a response from the device simulating the latest message. No response will be catched.")
+                print("Skipping response collection.")
             print(f"Waiting up to 30 seconds for messages...")
         zip_obj.write(f.name, f"sniffed_commands.txt")