I'm trying to upload a 60x60px, 3.8KB PNG image as my avatar but I'm receiving the error...

Warning! The following errors must be corrected before your profile can be updated:
The server was unable to save the uploaded file. Please contact the forum administrator at admin@deckbox.org.

Is there currently an issue with the avatar system?

"File" output in case it's useful:

file cim-60.png 
cim-60.png: PNG image data60 60 8-bit colormap, non-interlaced

Could you send us the image at support@deckbox.org ? We will take a look.