Mqtt and intent_script error

Hi, I’ve got the following error on my log when using Snips. Who understands what is going on?

2017-09-09 22:58:29 ERROR (MainThread) [homeassistant.components.snips] Error while handling intent.
Traceback (most recent call last):
File “/usr/lib/python3.6/site-packages/homeassistant/components/”, line 67, in message_received
hass, DOMAIN, intent_type, slots, request[‘input’])
File “/usr/lib/python3.6/site-packages/homeassistant/helpers/”, line 41, in async_handle
raise UnknownIntent()