https://www.tntware.com/tntconnect/help/faq_en/pages/how-do-i-get-past-quot-you-must-not-rename-quot-tntconnect-app-quot-to-quot-tntconnect-app-quot-this-can-cause-unexpected-errors-to-occur-quot.aspxSomehow, you are trying to run the application under the name "TntConnect ". (Notice the space to the right of the last "t". To get past this, just open your Applications folder (in Finder). If "TntConnect" exists, delete it. Then rename "TntConnect enCommunityServer 2008.5 SP2 (Debug Build: 40407.4157)