Wiki image uploads broken?

[DrPain]

I recently started a new wiki topic, and wanted to include an imbedded image.
However, when I tried to upload that image, I got an error message:

Could not copy file "/tmp/phpBtGevo" to "/home/httpd/vhosts/cegui.org.uk/httpdocs/wiki/images/0/05/Sample_TreeDemo.jpg".

Is this feature disabled on purpose, or is it broken and needing to be fixed? Or am I a dumbass and did it wrong?

[CrazyEddie]

It's a permissions issue on the server. I will address it.