The first place to visit is the COPPER mailing list:
https://groups.google.com/forum/#!forum/copper-engine
The mailing list is intended as a forum for both users and developers. All current COPPER developers are signed up.
The list members discuss general and technical issues around current and future COPPER releases. New users are always welcome! Don't hesitate to ask any questions.
You can subscribe to this list either by using the Google Groups website or, if you don't want to create a Google account, by sending an e-mail to copper-engine+subscribe@googlegroups.com with topic "subscribe". Or, if that doesn't work, simply e-mail us at contact@copper-engine.org and we'll sign you up.
Bug found? Feature Request? Use our GitHub issue tracker.
Visit our support page for support options.