Anyone now why? 

I'm not over 1 GB, It's Zip file packaged from my dev software and I have the HTML license so I dunno... maybe my profile is corrupted or something?... I could upload before just fine... but now I can't...

The file leaves my computer and hits the itch server I even see the bar come but for a split second before the error.

before the error.

Can you post the error you are seeing?

It just says :

"There was a problem completing your upload. Try again. If the problem persists contact support."

Also thanks for replying! XD

So, please contact support like the message says.

Ok, fair enough.