unable to remove websites from the Hub

I have several sites that I'm no longer associated with and would like to remove from "The Hub" but everytime I attempt it, I receive this error:
Something went wrong. We could not log you out from the website. Do you want to remove this site from the list anyway?
Are you able to remove them manually for me if I give you a list of sites to be removed? Thanks.

P.S. Here's a few of them that I would like removed:
854.91f.myftpupload.com
addsomefun.com
carsonmagic.com