server eror when i try to upload movie clips or thumnails

[Mirabelle-Lux]

hi old thread I know but I thought would post to relevant place. Why do uploads of movies take so long? I know the formate is supported MP4 and at 30 sec s long it is not huge. I find the site so outdated and clunky. Like why is it so difficult for Aw just to upload a video clip? They want us to work on our content but make it so difficult? 
can anyone advise as to how to upload? Does it work if you email the site with the clip as attachment? like they say .........
Mirabelle