Unable to authorise Eventbrite

I am unable to authorise the connection to Eventbrite. When I attempt to connect, I login to eventbrite.co.uk, click allow and get the ‘Failed to authorise’ or ‘Failed to load your request token while connecting to Eventbrite. Please try again in a moment.’ errors.

I went through all of the support posts and followed the steps from those people who have experienced similar issues.

I have cleared cache, cookies and history. I have used different browsers and have used different PC’s but the issue persists.

My Eventbrite email is [email protected].

https://wordpress.org/plugins/eventbrite-api/