It seems that you haven't correctly configured the module. Have you selected the correct mailchimp list to subscribe the users to?
This is what the message is saying: Invalid MailChimp List ID

Regards,
Daniel

Hi Daniel,

Many thanks for your help and quick reply, I really appreciate it!

I am actually using your component/plugin as part of the registration, therefore this doesn't use the module right?

But ive just setup the module and added it to a page, and its working perfectly (module settings attached as images)!

BUT the plugin with the same settings isn't working, as part of the registration.

Many thanks again, as I say I have double checked everything on the plugin but having no luck here

Really hoping you can help, as I say I can pay for your time if necessary, but badly need this working asap!

What component are you using for the registration?

Hi Daniel,
Many thanks for your help and quick reply! Really appreciate it!

It seems I hadn't spotted the 'User - CMC Registration plugin' and instead was modifying the 'Community - CMC Registration plugin' sorry about that!

So good news its now working!

Although currently not passing the First name and Last name even though im using the following field mapping:
EMAIL=email
FNAME=name:0
LNAME=name:1

BUT I have unfortunetly found another issue, with the cmc subscribe tickbox on the Edit Profile page:

If the user doesn't subscribe on registration it works fine.

If the user DOES subscribe on registration, when going to Edit Profile the tickbox is UNTICKED (indicating to the user that they are NOT subscribed) if the user LEAVES THE TICKBOX UNTICKED and clicks save, the MAILCHIMP USER SUBSCRIPTION REMAINS SUBSCRIBED.

If the user DOES subscribe on registration, when going to Edit Profile the tickbox is UNTICKED (indicating to the user that they are NOT subscribed) if the user TICKS THE TICKBOX TO SUBSCRIBE and clicks save, the USER RECEIVES THE FOLLOWING ERROR:
COM_CMC_SUBSCRIBE_FAILED 214 / email@emailaddress.com is already subscribed to list Luxury Flatshares Subscription List. Click here to update your profile.

So it seems unfortunetly the EDIT PROFILE subscribe tickbox isn't working correctly, id really appreciate your help! OR is this how your plugin functions?

Also I have found the following error from mailchimp, it seems this may be an issue as we would like users to subscribe/unsubscribe regularly.

Once again many thanks in advance!!!!!!!

COM_CMC_SUBSCRIBE_FAILED 212 / email@emailaddress.com has unsubscribed, and cannot be resubscribed by you. To prevent false spam complaints, they'll need to resubscribe of their own free will.