[Plugin: MailChimp List Subscribe Form] Conflict with Shopp E-Commerce Plug-in

If you can post errors from your Apache or PHP error logs there’s a chance that we might be able to troubleshoot without looking at their plugin.

However, since it is not a free plugin that we can get and test without paying, I’d suggest reporting this to them. Hopefully they’ll be willing to test it and either fix their side or suggest to us where the conflict is coming from. If you do that, I’d also suggest giving them the link to this thread.