Adobe Digital Edition (error de activación)

Hi all, I HAVE A PROBLEM WITH ADOBE DIGITAL EDITION, WHAT HAPPENS IS THAT ATTEMPT TO AUTHORIZE MY TEAM TO BE ABLE TO READ A FILE ACSM BUT OPENS A WINDOW WITH THIS ERROR   error with the activation server.  code E_ADEPTS_REQUEST_EXPIRED  WHAT CAN I DO , THERE IS A SOLUTION  GREETINGS COMMUNITY