You can reach us, by creating issues on our Github Repository specific for it through https://github.com/taikai/taikai-open
You can also reach us through our Taikai Slack, by join us through http://bit.ly/join_taikai_slack posting your issues on #support channel.
Pretty old school, we know, but always effective. Contact us through [email protected] with your issue and screenshots (if possible).
Thank you for your feedback!