Custom form not getting submitted

[fu-upload-form class=”your-class” title=”Upload your media”]
[textarea name=”post_content” class=”required” id=”ug_caption” description=”Embed Video”]
[input type=”submit” class=”btn” value=”Submit”]
[/fu-upload-form]

Please let me know what i am doing wrong. I just need a textarea, no uploading of media.

https://www.ads-software.com/plugins/frontend-uploader/