Hints how to solve “Error connecting to server secure.wp-chat.com”

I see this ‘Error connecting to server secure.wp-chat.com’ above the “Open Administration area” in my WP website dashboard, and unable to chat with my customers. Any hints how to solve it?

First of all,  try to change integration method (see the image below). In Chat Advanced Settings find Integration method. Try to use ‘external’, if it does not help change it into ‘internal’.

If both methods did not work for you and the error persists, then:

1) check if you use any security plugin on your WordPress website. If yes, switch it off and try to use the Chat;

2) contact your hosting administrator and ask if your hosting / server allows POST and GET requests from our website secure.wp-chat.com.