我已经验证了我的卡片网址。我收到内部服务器错误。有什么问题？我能做些什么来纠正这个问题？以下是我的网址：
https://www.bitgiving.com/aghanashini
以下是我的元标记：
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:site" content="@BitGiving">
<meta name="og:title" content="Documentary on a Unique River in India - Aghanashini | BitGiving">
<meta name="og:type" content="website">
<meta name="og:description" content="There are hardly any rivers left in India that are untouched. This is a story of one such rare river - Aghanashini, which is still untamed.">
<meta name="og:url" content="https://www.bitgiving.com/aghanashini">
<meta name="og:image" content="https://s3-ap-southeast-1.amazonaws.com/bitgivingdata/event/5545__event1479405608.jpg">
我已启用要求全部授予。 在robot.txt中，允许Twitterbot，但没有成功。