Variable empty or 0 or ''
Notice: Trying to access array offset on value of type null in /home/eh1/e54061/public_html/wp/countries/delete.php on line 13

Fatal error: Uncaught Error: Cannot pass parameter 1 by reference in /home/eh1/e54061/public_html/wp/countries/delete.php:15
Stack trace:
#0 {main}
  thrown in /home/eh1/e54061/public_html/wp/countries/delete.php on line 15