You can help me .. I bought Banner Ads Plugin and Osclass Pay .. but I can not put the banners and the codes ... and where to put the codes

I have the same problem only with banner ads
ITALIAN
ho lo stesso problema solo coni banner

http://prntscr.com/hondpo

in which folder and where should I enter it
<? php if (function_exists ('ba_hook') {ba_hook ('home_banners');}?>

in which folder and where should I enter it
<? php if (function_exists ('ba_hook') {ba_hook ('footer_banners');}?>

in which folder and where should I enter it
<? php if (function_exists ('ba_hook') {ba_hook ('search_banners_banners');}?>

in which folder and where should I enter it
<? php if (function_exists ('ba_hook') {ba_hook (', home_banners_banners');}?>

IN WHICH FOLDER I HAVE TO GO TO PUT THE CODE AND WHERE
http://prntscr.com/hopxvq

oc-content/themes/{your theme}
file:
item.php - listing page
search.php - search page
main.php - home page

you can kindly send them already edited
my email [email protected]

@Fabio
Sorry, we do not do such service, simply put it into one of those files based on your requirements. You can start with homepage, create banner and ad and link it with this hook.

oc-content / themes / {your theme}
file:
item.php - listing page
search.php - search page
main.php - home page

I went on veronoca theme I went on the folders
item.php but I can not find listing page
search .php I can not find a search page
main.php I can not find a homepage

That is impossible as both files are core for oslcass themes.

if wants banners in all 3 page beter its add hook to header.php .

this I'm going to enter you item.php (where?)
<? php if (function_exists ('ba_hook') {ba_hook ('my_custom_hook');}?>


this I'm going to insert on the header (where?)
  <? php if (function_exists ('ba_hook') {ba_hook ('my_custom_hook');}?>

this I'm going to put on footer (where?)
<? php if (function_exists ('ba_hook') {ba_hook ('my_custom_hook');}?>

Help me please

this I'm going to enter you item.php (where?)
<? php if (function_exists ('ba_hook') {ba_hook ('my_custom_hook');}?>


this I'm going to insert on the header (where?)
  <? php if (function_exists ('ba_hook') {ba_hook ('my_custom_hook');}?>

this I'm going to put on footer (where?)
<? php if (function_exists ('ba_hook') {ba_hook ('my_custom_hook');}?>

Help me please

It's very simple, follow the above mention step,

@Fabio
Well I am not sure if anyone is able to help you. When I write you step by step plugin, you ask on each step what to do there... so I am really curious what do you expect

I do not understand where I have to go to enter the code I went to header.php the inserted at the top but nothing comes to me white page
<? php if (function_exists ('ba_hook') {ba_hook ('my_custom_hook');}?>

What does it mean
oc-content / themes / {your theme}
file:
item.php - list page
search.php - search page ?
main.php - home page ?