Error message

• Warning: array_keys() expects parameter 1 to be array, null given in get_numerical_child_element() (line 68 of /home/taytsh5/public_html/taytsh.org/sites/all/themes/ybctheme/template.php).
• Warning: array_filter() expects parameter 1 to be array, null given in get_numerical_child_element() (line 68 of /home/taytsh5/public_html/taytsh.org/sites/all/themes/ybctheme/template.php).
• Warning: Invalid argument supplied for foreach() in get_numerical_child_element() (line 69 of /home/taytsh5/public_html/taytsh.org/sites/all/themes/ybctheme/template.php).