fixed whastapp icon issue

footer.php

@@ -231,7 +231,7 @@
 </a>
 
 <div class="whats-app-icon-wrapper">
-  <a href="https://wa.me/<?php echo $whatsapp ?>" target="_blank">
+  <a href="https://wa.me/<?php echo get_field('whats_app_number', 'option'); ?>" target="_blank">
     <svg width="60" height="60" viewBox="0 0 48 48" fill="none" xmlns="http://www.w3.org/2000/svg">
       <path
         d="M48 24C48 37.2548 37.2548 48 24 48C10.7452 48 0 37.2548 0 24C0 10.7452 10.7452 0 24 0C37.2548 0 48 10.7452 48 24Z"