FIXED
The issue was found on the file
/modules/wtblocksearch/views/templates/front/nbr-product-page.tpl
specifically had to change the form action from:
<form action="{$link->getModuleLink('categorysearch', 'catesearch', array(), true)|escape:'html':'UTF-8'}" method="get" class="nbrItemPage">
to
<form action="{$link->getModuleLink('wtblocksearch', 'catesearch', array(), true)|escape:'html':'UTF-8'}" me thod="get" class="nbrItemPage">
and it worked.