D.Tube error while submitting to the blockchain

I'm submitting my sixth video and I keep getting this error. I've uploaded the video itself, the snap, filled in the fields, I press "submit" and I get this.

I got the same thing when I was uploading my fifth and forth videos, but back then I just went to google a solution, didn't find anything, came back, pressed "submit" without changing anything and it worked. Both times. This times nothing works.

I tried all the solutions I could find, I've re-uploaded the video twice, waited for half an hour. This is really frustrating. Any help?