Error message while creating a new survey and update previous surveys

Is there any problem with Questionnaire Designer today? I’m trying to update/continue to create my survey but any change I make even moving the questions up and down, is not allowed. I can’t save either and this message appears “Request failed unexpectedly”.
I tried to create a new survey with this account and the same happens: unable to create a new one and the same message.
Also, I created another account, logged in and tried to create a new survey. And this this time the message was “Error. An error occurred while processing your request.”
Thanks in advance,

Dear Susana,

The issue was solved, you may continue your tasks.

Best regards,