Cross Connectin Query Builder Connection Error.

Hi I am getting the following error, it used to work, but now Myself and other users are getting this error, we cannot create any cross connection query. Toad Data Point 3.8.0.575. Any help out there ?

What is the error? Also, can you start Local Storage. If not, add " /log=all" to the command line and try to start local storage. Then go to help about and in the app data dir is Toad.log. Post that.