TinyButStrong Error with LoadTemplate() method : file 'template_index.html' is not found or not readable.

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/enbolcom/public_html/includes/tbs_class_php5.php:2352) in /home/enbolcom/public_html/includes/sc.php on line 18