Don't think they are active here too. Have you tried contacting them on either of their contact supports that can be found here? https://www.mintdice.com/faq/contact-us/contact-mintdice#need-technical-support

Technical support - support@mintdice.com
Comments - comments@mintdice.com
Sales, etc. - sales@mintdice.com
Security - security@mintdice.com.

If you can't contact them on either of this emails I think they just ignore you or doesn't really care about their players.