"Your Product Activation Key Reached Its Activation Limit..."

Hi. I Have this problem. During activation the system tells me: "Your Product Activation Key Reached Its Activation Limit...". Could you please help me.

 

I attach photo

 

Hello, we have sent you a personal message, please provide us with your Parallels Desktop license key, so that we can resolve the issue for you. Thanks.

 

Hello, we have sent you a personal message, please provide us with your Parallels Desktop license key, so that we can resolve the issue for you. Thanks.

 

sold old MacBooks. and have a new one... I need to deactivate these old computers

 

Hello. I've been using Parallels Desktop 10 on my Mac for years. Today, when I attempt to run it I'm getting a notice asking me to activate and when I enter the license #, I get a message saying there is an activation timeout. I also get a timeout message when entering the prlsrvctl activate-license-online command from a Terminal window. What is the resolution? Thank you.

 

I'm having the same problem. Please help.
Thanks.

 

And I can't deactivate on my old computer.

 

Works now.