The element type "link" must be terminated by the matching end-tag "</link>".
I don't have a server available for you, but this error is not something that would be generated from a generic upload -- this is a parsing error. Is the application generating this error, or is the error coming from the server? If you are uploading a small bit of HTML code, then my best guess is that the server is parsing the HTML before accepting it as a valid upload -- possibly on the fly during the upload. If the error is coming from the application, then I'd guess the app is doing more communication with the server than simply sending a file.
At any rate, the error sounds like the parser isn't configured (or isn't smart enough to understand) a self-closing tag:
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