Step to upload the first video and photo

Hi, I just signed up to Pond5 and this is my first question in the forum, how can I upload photos and videos and the steps to upload them what they are ... maybe for you it's a stupid question, but I can't upload mine first video ... thanks to whoever answers me!

https://contributor.pond5.com/getting-started/preparing-your-files-2/

Thanks...

If you are still struggling, call back :)