ERROR: Failed to send message to Rasa Chat webhook

[Deprecated] Rasa X Community Edition
1

Hi,

I am using Rasa version:

Rasa Version      :         2.8.15
Minimum Compatible Version: 2.8.9
Rasa SDK Version  :         2.8.3
Rasa X Version    :         1.0.0
Python Version    :         3.7.4

I created a shared link in Rasa X, but when accessing it and sending a message, no response is received; I get this error in sara X server:

ERROR rasax.community.api.blueprints.stack - Failed to send message to Rasa Chat webhook. Error: Cannot connect to host stuff:5005 ssl:default [nodename nor servname provided, or not known]

How to solve this?