Trailer Video Error on Scorecard - this again, I know, but I couldn't find the answer just searching

I've been trying to upload two trailers through ScoreCard but the same message keep showing up on my mac:

"Sorry, your video upload failed. Your upload was interrupted. Please try uploading your video again."

I've read  all the guidelines, tried every format ( MP4, WMV, AVI and Quicktime) change size, name , but none of it worked for both of the trailers. The archives are no bigger than 70mb. My internet connection is good and stable here.

Then I moved to a windows, and it was able to go a little further, it upload, and started processing. But this error appears after a few seconds

I tried yesterday the entire day, and this morning and afternoon I did it almost in loop, with different formats and the recommended codec and machines (even different internet connections)

Nothing seemed to help, and I looked for the solution on this forum, but none of the answers helped, most just repeated what is on the guidelines and asked.  I also never find cases of people who solved this.

The trailers have been uploaded on youtube, filmfreeway and other places with ease, and they have been exported months apart in different machines, so I assume its not a problem in the original files.

If you solved, please, or  if you know or ave any new ideia that is (just try to not repeat the damn guidelines haha) 

Thanks! 

PS: I'm using a screenshots that I found here in the forum,I couldn't screenshot it, so they're not my films in the images, but they had the same error)