Getting the following error message after the client made some changes to the site...

Warning: main(includes/templates/template_default/templates/tpl_product_info_default.php): failed to open stream: No such file or directory in /hsphere/local/home/xxxxxx/xxxxxx/includes/templates/template_default/common/tpl_main_page.php on line 119
Now I'm not surprised it can't find that file, but why would it be looking for it in the first place?

Line 119 of tpl_main_page.php is simply
Code:
require($body_code); ?>
which doesn't give someone like me much of a clue. Where do I look next?