Warning: Undefined variable $CountriesList in /var/www/imcdb/lang/countries2.php on line 251

Fatal error: Uncaught TypeError: array_merge(): Argument #1 must be of type array, null given in /var/www/imcdb/lang/countries2.php:251
Stack trace:
#0 /var/www/imcdb/lang/countries2.php(251): array_merge()
#1 /var/www/imcdb/movie-class.php(4): include_once('...')
#2 /var/www/imcdb/movie.php(5): include_once('...')
#3 {main}
  thrown in /var/www/imcdb/lang/countries2.php on line 251