"You are not allowed to move this item to the Trash."

I tried to install your “Listings” plugin from the WPMU Dev Dashboard and I got an “Error”

I tried this several more times

Now I have a bunch of pages titled “Listings” and I cannot delete them.

When I try to delete them I get the error message:

“You are not allowed to move this item to the Trash.”

Please help me delete these pages. I do not think I will be using this plugin (it’s not even installed)