path routing problem with the hosting

[diamond1]

Everything starts from this post https://www.zen-cart.com/showthread....search-instead where eventually even another has the same problem of path path

I have a problem that the hosting service can not resolve, I hope that you will. I stress before it all runs on localhost MAMP but not on the hosting, I made a change this
(https://pro-webs.net/blog/2010/03/21...tock-products/)
I get a debug file and rederict not work why?

[03-May-2016 13:29:29 Europe/Rome] PHP Warning:  Cannot modify header information - headers already sent by (output started at /home/balblabla/public_html/includes/templates/mobishop_blue/common/tpl_header.php:230) in /home/balblabla/public_html/includes/modules/pages/product_info/main_template_vars.php on line 34
[03-May-2016 13:29:29 Europe/Rome] PHP Warning:  Cannot modify header information - headers already sent by (output started at /home/balblabla/public_html/includes/templates/mobishop_blue/common/tpl_header.php:230) in /home/balblabla/public_html/includes/modules/pages/product_info/main_template_vars.php on line 35
[03-May-2016 13:29:29 Europe/Rome] PHP Warning:  require(/home/balblabla/public_html/includes/templates/mobishop_blue/templates): failed to open stream: No such device in /home/balblabla/public_html/includes/modules/pages/product_info/main_template_vars.php on line 180
[03-May-2016 13:29:29 Europe/Rome] PHP Fatal error:  require(): Failed opening required 'includes/templates/mobishop_blue/templates' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/balblabla/public_html/includes/modules/pages/product_info/main_template_vars.php on line 180 

I think that hosting has some restrictions but which one? they tell me that the code is wrong, but if it works in localhost as may be the Melanie code?