Error in Fetching Custom Post Type parent Category URL (slug)

I have this code for breadcrumbs that works fine except the custom post type parent category URL and the category TITLE.

The parent category URL is does not return the valid (correct) slug while its title (anchor) returns a text with description on it like CATEGORY - BOOKS.

Although I am a bit of a mediocre in coding but I am open for learning. I figured out the code responsible for displaying the invalid parent category is below

elseif ( get_post_type() != 'post' ) {
              $post_type = get_post_type_object(get_post_type());
              $slug = $post_type-rewrite;
              echo 'a href=' . $homeLink . '/' . $slug['slug'] . '/' . $post_type-labels-singular_name . '/a';
              if ($showCurrent == 1) echo ' ' . $delimiter . ' ' . $beforeTag . $title . $afterTag;
            } 

It is a listing website and the code above returns the link below

a href=https://example.com/%drts_page_slug%/Business - Listing/a. 

You can find the above code in the one below used for showing breadcrumb. Thanks for your help, it will be highly appreciated.

function ft_custom_breadcrumbs(array $options = array() ) {
    
    // default values assigned to options
    $options = array_merge(array(
        'crumbId' = 'nav_crumb', // id for the breadcrumb Div
    'crumbClass' = 'nav_crumb', // class for the breadcrumb Div
    'beginningText' = 'You are here :', // text showing before breadcrumb starts
    'showOnHome' = 1,// 1 - show breadcrumbs on the homepage, 0 - don't show
    'delimiter' = ' gt; ', // delimiter between crumbs
    'homePageText' = 'Home', // text for the 'Home' link
    'showCurrent' = 1, // 1 - show current post/page title in breadcrumbs, 0 - don't show
    'beforeTag' = 'span class=current', // tag before the current breadcrumb
    'afterTag' = '/span', // tag after the current crumb
    'showTitle'= 1 // showing post/page title or slug if title to show then 1
   ), $options);
   
   $crumbId = $options['crumbId'];
    $crumbClass = $options['crumbClass'];
    $beginningText = $options['beginningText'] ;
    $showOnHome = $options['showOnHome'];
    $delimiter = $options['delimiter']; 
    $homePageText = $options['homePageText']; 
    $showCurrent = $options['showCurrent']; 
    $beforeTag = $options['beforeTag']; 
    $afterTag = $options['afterTag']; 
    $showTitle =  $options['showTitle']; 
    
    global $post;
 
    $wp_query = $GLOBALS['wp_query'];
 
    $homeLink = get_bloginfo('url');
    
    echo 'div id='.$crumbId.' class='.$crumbClass.' '.$beginningText;
    
    if (is_home() || is_front_page()) {
    
      if ($showOnHome == 1)
 
          echo $beforeTag . $homePageText . $afterTag;
 
    } else { 
    
      echo 'a href=' . $homeLink . '' . $homePageText . '/a ' . $delimiter . ' ';
    
      if ( is_category() ) {
        $thisCat = get_category(get_query_var('cat'), false);
        if ($thisCat-parent != 0) echo get_category_parents($thisCat-parent, TRUE, ' ' . $delimiter . ' ');
        echo $beforeTag . 'Archive by category ' . single_cat_title('', false) . '' . $afterTag;
    
      } elseif ( is_tax() ) {
          $term = get_term_by( 'slug', get_query_var( 'term' ), get_query_var( 'taxonomy' ) );
          $parents = array();
          $parent = $term-parent;
          while ( $parent ) {
              $parents[] = $parent;
              $new_parent = get_term_by( 'id', $parent, get_query_var( 'taxonomy' ) );
              $parent = $new_parent-parent;
 
          }       
          if ( ! empty( $parents ) ) {
              $parents = array_reverse( $parents );
              foreach ( $parents as $parent ) {
                  $item = get_term_by( 'id', $parent, get_query_var( 'taxonomy' ));
                  echo   'a href=' . get_term_link( $item-slug, get_query_var( 'taxonomy' ) ) . '' . $item-name . '/a'  . $delimiter;
              }
          }
 
          $queried_object = $wp_query-get_queried_object();
          echo $beforeTag . $queried_object-name . $afterTag;    
          } elseif ( is_search() ) {
        echo $beforeTag . 'Search results for ' . get_search_query() . '' . $afterTag;
    
      } elseif ( is_day() ) {
        echo 'a href=' . get_year_link(get_the_time('Y')) . '' . get_the_time('Y') . '/a ' . $delimiter . ' ';
        echo 'a href=' . get_month_link(get_the_time('Y'),get_the_time('m')) . '' . get_the_time('F') . '/a ' . $delimiter . ' ';
        echo $beforeTag . get_the_time('d') . $afterTag;
    
      } elseif ( is_month() ) {
        echo 'a href=' . get_year_link(get_the_time('Y')) . '' . get_the_time('Y') . '/a ' . $delimiter . ' ';
        echo $beforeTag . get_the_time('F') . $afterTag;
    
      } elseif ( is_year() ) {
        echo $beforeTag . get_the_time('Y') . $afterTag;
    
      } elseif ( is_single()  !is_attachment() ) {
          
             if($showTitle)
               $title = get_the_title();
              else
              $title =  $post-post_name;
          
                     if ( get_post_type() == 'product' ) { // it is for custom post type with custome taxonomies like
                     //Breadcrumb would be : Home Furnishings  Bed Covers  Cotton Quilt King Kantha Bedspread 
                     // product = Cotton Quilt King Kantha Bedspread, custom taxonomy product_cat (Home Furnishings - Bed Covers)
// show  product with category on single page
                      if ( $terms = wp_get_object_terms( $post-ID, 'product_cat' ) ) {
        
                          $term = current( $terms );
        
                          $parents = array();
        
                          $parent = $term-parent;
                          while ( $parent ) {
        
                              $parents[] = $parent;
        
                              $new_parent = get_term_by( 'id', $parent, 'product_cat' );
        
                              $parent = $new_parent-parent;
        
                          }
                          if ( ! empty( $parents ) ) {
        
                              $parents = array_reverse($parents);
        
                              foreach ( $parents as $parent ) {
        
                                  $item = get_term_by( 'id', $parent, 'product_cat');
        
                                  echo  'a href=' . get_term_link( $item-slug, 'product_cat' ) . '' . $item-name . '/a'  . $delimiter;
        
                              }
        
                          }
                          echo  'a href=' . get_term_link( $term-slug, 'product_cat' ) . '' . $term-name . '/a'  . $delimiter;
                      }
                      echo $beforeTag . $title . $afterTag;
                  }  elseif ( get_post_type() != 'post' ) {
                  $post_type = get_post_type_object(get_post_type());
                  $slug = $post_type-rewrite;
                  echo 'a href=' . $homeLink . '/' . $slug['slug'] . '/' . $post_type-labels-singular_name . '/a';
                  if ($showCurrent == 1) echo ' ' . $delimiter . ' ' . $beforeTag . $title . $afterTag;
                } else {
                  $cat = get_the_category(); $cat = $cat[0];
                  $cats = get_category_parents($cat, TRUE, ' ' . $delimiter . ' ');
                  if ($showCurrent == 0) $cats = preg_replace(#^(.+)\s$delimiter\s$#, $1, $cats);
                  echo $cats;
                  if ($showCurrent == 1) echo $beforeTag . $title . $afterTag;
        
                }
 
      } elseif ( !is_single()  !is_page()  get_post_type() != 'post'  !is_404() ) {
          
        $post_type = get_post_type_object(get_post_type());
        
        echo $beforeTag . $post_type-labels-singular_name . $afterTag;
             
     } elseif ( is_attachment() ) {
             
        $parent = get_post($post-post_parent);
        $cat = get_the_category($parent-ID); $cat = $cat[0];
        echo get_category_parents($cat, TRUE, ' ' . $delimiter . ' ');
        echo 'a href=' . get_permalink($parent) . '' . $parent-post_title . '/a';
        if ($showCurrent == 1) echo ' ' . $delimiter . ' ' . $beforeTag . get_the_title() . $afterTag;  
          
        } elseif ( is_page()  !$post-post_parent ) {
            $title =($showTitle)? get_the_title():$post-post_name;
              
        if ($showCurrent == 1) echo $beforeTag .  $title . $afterTag;
 
      } elseif ( is_page()  $post-post_parent ) {
        $parent_id  = $post-post_parent;
        $breadcrumbs = array();
        while ($parent_id) {
          $page = get_page($parent_id);
          $breadcrumbs[] = 'a href=' . get_permalink($page-ID) . '' . get_the_title($page-ID) . '/a';
          $parent_id  = $page-post_parent;
        }
        $breadcrumbs = array_reverse($breadcrumbs);
        for ($i = 0; $i  count($breadcrumbs); $i++) {
          echo $breadcrumbs[$i];
          if ($i != count($breadcrumbs)-1) echo ' ' . $delimiter . ' ';
        }
            $title =($showTitle)? get_the_title():$post-post_name;
           
    if ($showCurrent == 1) echo ' ' . $delimiter . ' ' . $beforeTag . $title . $afterTag;
 
      } elseif ( is_tag() ) {
 
        echo $beforeTag . 'Posts tagged ' . single_tag_title('', false) . '' . $afterTag;
 
      } elseif ( is_author() ) {
         global $author;
        $userdata = get_userdata($author);
 
        echo $beforeTag . 'Articles posted by ' . $userdata-display_name . $afterTag;
 
      } elseif ( is_404() ) {
          
        echo $beforeTag . 'Error 404' . $afterTag;
 
      }
 
      if ( get_query_var('paged') ) {
        if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() || is_tax() ) echo ' (';
        echo __('Page') . ' ' . get_query_var('paged');
        if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() || is_tax() ) echo ')';
      }
    }
    echo '/div';
  }

Credits: Amits of FellowTuts