警告:在第183行的/home/content/03/11247403/html/wp-content/themes/kerdowney-2810/t_destinations.php中为foreach()提供的参数无效

i'm working on a WordPress site, i keep on getting this warning. i thought it has something to do with my magic fields maybe i named something wrong but its still giving me the same error.

How do i solve this problem. I have this piece of code on t_destinations.php

$ras = getGroupOrder('recommended_accommodation_title' , $ras);
foreach ($ras as $ra) :
  $ras_title = get('recommended_accommodation_title', $ras);
  $ra_link = get('recommended_accommodation_link', $ra);
  $link = !empty($ra_link) ? $ra_link : '#';