tps: 1000條平行鏈和百萬TPS，波卡鏈Polkadot能迎來生態爆發？
: Uncaught TypeError: shuffle(): Argument #1 ($array) must be of type array, null given in /var/www/hoodb/function.php:109
Stack trace:
#0 /var/www/hoodb/function.php(109): shuffle()
#1 /var/www/hoodb/redirect.php(241): showNav()
#2 /var/www/hoodb/route.php(53): include_once('...')
#3 /var/www/hoodb/route.php(20): go()
#4 {main}
thrown in