Error Logging in to Fusion Builder Live

I have starting getting the following error when I try to use Fusion Builder Live (happening on multiple sites): Reference Error: Can’t find variable: attr

I am able to choose “Edit” to make changes with no problems. My Avada theme seems to be up to date… there are no notifications that it needs to be updated.

Someone built these sites for me, I know for sure one was done in January of this year, and they have the activation keys installed.

Any help would be appreciated.