DevNet Sandbox for Broadworks stopped working

[SergioLo]

Hi all. 
Yesterday I had a succesfull session with the Broadworks sandbox (I'm writing a XSI client).
This morning, I reserved the box again, but after the usual 2 minutes I've got no activation mail. I checked on website, the box is flagged "active with error" and the output log says:

09:05:42 Setup has begun
Beginning sandbox setup
Preparing connectivity
Apps deployment started
Apps are being discovered...
Group Creation started
error:Cannot assign account, please raise a case in sandbox forum
Sandbox setup finished successfully
09:06:20 Errors occurred preparing environment. Please use the forum at
https://communities.cisco.com/community/developer/sandbox for assistance

Already tried to cancel and re-reserve the sandbox, same error. 

Thanks in advance. 

[SergioLo]

...same error this morning. And I can't continue my work without a working sandbox... 

As a test, I created a new Cisco account with a provisional email, and it got the sandbox without errors, so it's an account problem. Still the only option listed in the output is to leave a message here...