Bug/Issue Problem Uploading Resource Files

Is there something up with the forums right now? The site won't let me post updated resource files for mods. The upload keeps failing with a
The following error occurred
There was a problem uploading your file.

I'm using regular old .zips, and it won't even accept the exact same and unchanged .zip files that I previously uploaded just fine, so what gives?

I thought Adblock Plus might’ve been interfering (since I've just recently installed it), but even after I completely disabled it I’m still getting the error, so what gives?!