Maximum number of unattended computers

Maximum number of unattended computers

I have just received the message "Oops! You have reached the maximum amount of unattended computers" when I tried to install the unattended assist agent on a client's computer today. I have never received this message before and I was under the impression I had an unlimited amount of unattended agent installs (but not concurrent sessions, of course). I have the Remote Support Professional Plan. Can anyone tell me why I am getting this error message now? Thank you. 

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      • Release Notes: Version 1.91, February 2015

        Unattended Access (Beta) is live!   Unattended Access, a feature requested by a lot of our customers is live now. Currently, it's in beta. You can add up to 100 computers per Technician subscription. They can also be accessed by your organization members.  My Computers  list in Zoho Assist home page will  always  display the online status of your unattended computers. You can rename the computers whenever you wish.  Currently, Unattended Access can be configured only for Windows computers. Nevertheless,