I've re-uploaded the entire enchilada. Now getting this:
Exception: The AOP directory either doesn't exist or isn't writable. - library/DBTech/Shout/Model/Shoutbox.php:1100
#0 /var/www/html/library/DBTech/Shout/Action/Ajax/Fetch.php(226): DBTech_Shout_Model_Shoutbox->fetchAop('shouts', 1)
#1 /var/www/html/library/DBTech/Shout/Action/Ajax.php(163): DBTech_Shout_Action_Ajax_Fetch->__handle(Array, Array, Array)
#2 /var/www/html/library/DBTech/Shout/Application/Core.php(337): DBTech_Shout_Action_Ajax->actionIndex()
#3 /var/www/html/library/DBTech/Shout/XenForo/ControllerPublic/Shout.php(24): DBTech_Shout_Application_Core->runAction()
#4 /var/www/html/library/XenForo/FrontController.php(351): DBTech_Shout_XenForo_ControllerPublic_Shout->actionIndex()
#5 /var/www/html/library/XenForo/FrontController.php(134): XenForo_FrontController->dispatch(Object(XenForo_RouteMatch))
#6 /var/www/html/index.php(13): XenForo_FrontController->run()
#7 {main}
Just FYI permissions:
-rwxrwxr-x 1 ec2-user ec2-user 80077 Apr 22 20:45 Shoutbox.php