Lost connection to MySQL server at 'reading authorization packet', system error: 104

FILE: /usr/home/wh-ascku3hrj4pusf03zkm/htdocs/Core/ThinkPHP/Lib/Driver/Db/DbMysql.class.php 　LINE: 58

ThinkPHP^3.1.3 { Fast & Simple OOP PHP Framework } -- [ WE CAN DO IT JUST THINK ]