WooCommerce integration failed

I’m trying to install and activate the WooCommerce integration via the button Integration tab of the Settings section in Affiliates Enterprise but continue to get the following error:

“An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the support forums.”

The Itthinx Updates plugin is installed and the service key set. Please advise what to do next.

Kind regards