Thanks very much for your reply. Unfortunately, that’s not the answer as I did copy / paste the entire API key and the plug-in shows my API Key Setting as “Connected…”
Even if I re-copy / paste and re-save the API Key, delete and re-add the Widget, the MailChimp Widget still returns this error:
“» 104:Invalid Mailchimp API Key: no_login . You are accessing the wrong datacenter – your client library may not properly support our datacenter mapping scheme.”
Any advice would certainly be appreciated.
Cheers!