https://www.tntware.com/tntconnect/help/faq_en/pages/how-can-i-get-past-quot-error-reading-statusbar-left-system-error-code-1411-class-does-not-exist-quot-when-starting-tntmpd-on-my-mac.aspxTo get past this issue, you need to: Force a fresh reinstall of TntMPD on your Mac (Note: This issue might be avoided by not letting your computer go to sleep while TntMPD is running .)enCommunityServer 2008.5 SP2 (Debug Build: 40407.4157)