In order to keep your files secure against various threats, File Manager requires that your computer clock be set accurately - this, alongside other measures, helps to ensure that files are not tampered with between your computer and our server.

Please ensure that your clock is set accurately (to within 10 seconds of the correct time), and that your time zone is set correctly.

Occasionally, this error is also caused by your browser caching old data - you can clear your cache by reloading the page with Ctrl+F5, and try clearing your cookies - if you don't know how to do this, please consult your browser's Help file.