Pagnation issues

Do I replace the existing page /* page navigation */ or add to it?
Thank you for telling me about joomla's change, this will make it easy to correct the problem!

just add it

I am afraid it didn't work. at the same time I added the class for vm-pagination.
I managed to find other virtuemart users suffering the same issue, and there is a possible fix too.

Thank you very much for the time you have spent with me on this project

EDIT: Fixed.
need to edit the product.php file
\administrator\components\com_virtuemart\models
Find line 567 and add this:
$prod_per_page = explode(",",VmConfig::get('pagination_sequence'));
if($limit <= $prod_per_page && array_key_exists('0',$prod_per_page)){
$limit = $prod_per_page;
}


The entire section should then look like this:

$catModel= VmModel::getModel('category');
$category = $catModel->getCategory();
if(empty($limit)){
if(!empty($category->limit_list_initial)){
$suglimit = $category->limit_list_initial;
} else {
if(empty($category->limit_list_step)){
$suglimit = VmConfig::get ('list_limit', 20);
} else {
$suglimit = $category->limit_list_step;

}
}
if(empty($category->products_per_row)){
$category->products_per_row = VmConfig::get ('products_per_row', 3);
}
$rest = $suglimit%$category->products_per_row;
$limit = $suglimit - $rest;
}
$prod_per_page = explode(",",VmConfig::get('pagination_sequence'));
if($limit <= $prod_per_page && array_key_exists('0',$prod_per_page)){
$limit = $prod_per_page;
}

//vmdebug('my cat',$category);

Ok, thank you or sharing that with us