Youtube Plugin issue - "Invalid Youtube Video Data"

Hello! I am currently trying to use the Omeka Classic “youtube import” plugin but am finding my upload unsuccessful. I have my videos uploaded on to youtube and set them as unlisted. When I click on “import video” i get a separate web page saying that the page “can’t currently handle” my request. and then when I refresh the page, it says “invalid youtube video data. check your form entries.” I’m not really sure what that means. I have also tried to select and deselect the “make video public on omeka” selection.

I am currently using Omeka through their web program and not as an installed program.