Cloner Plugin Doesn't Work on subsite of multisite www.xxx.xxx

We have a multisite Wordpress and are trying to use the Cloner plugin to copy sites. It works great on our dev site which is dev.gsu.edu, but when we try to clone a site on our production, http://www.gsu.edu, we encounter issues. We are trying to copy a site xxxx.gsu.edu to beta.xxxx.gsu.edu. It creates the new site, but them gives an error when it tries to start copying data. It appears to be trying to make the new site beta.xxx.www.gsu.edu and then it can't find it to copy. Is there a setting we are missing to make this work?

Thanks