PD 9. This VM is registered on another server… Cannot boot VM.

I have two OS, ML and Maverics on a different HDD.

Using PD 9 on ML I run OS Windows 7.
Today I 've tried to boot this VM by PD 9 on Maverics. I've chosen a file *.pvm and selected Drag (on russian Перенести).

So I cannot to boot this VM on ML.
"Unable to complete operation for this virtual machine "…""
"This virtual machine was registered on another server. You can only to cancel registration this VM or stop it"

What's the problem?

 

Step to complete problem.
1. Rename file .pvm
2. Launch PD and delete registration.
3. Choose a file .pvm and double click.
4. Profit.

Step 1 you can miss.