Twitter Player card not working properly

[softtest55]

I am trying to share video from my webpage to twitter using twitter meta player card.
which is as below.

<meta name="twitter:card" content="player">
<meta name="twitter:site" content="@mywebsite">
<meta name="twitter:creator" content="@test">
<meta name="twitter:title" content="test">
<meta name="twitter:description" content="test">
<meta name="twitter:player" content="https://iceenvy-rapnet.com/videoframe.html?random=1500459457" />
<meta name="twitter:player:width" content="100%" />
<meta name="twitter:player:height" content="100%" />
<meta name="twitter:image" content="http://mywesite.com/thumbnail.jpg">

and the video file is as below.

<video width="100%" height="300" controls autoplay>
       <source src="https://iceenvy-rapnet.com/150045377586test1.mp4" type="video/mp4">
</video>

When I post it to the twitter from my website it displays the player as below.

but when I click on play button the video is not played and it disappears as below.

When i developed it before 1 month , it was working fine and the video was playing successfully.

can any one check what is the issue.