I renewed my subscription of Parallels access 2weeks ago. So, subscription is effective until 2015.8.16 . Two days ago, I reinstalled the Parallels access on my iPad. after that, I received the message that my subscription was expired and I only can use Parallels access for 5minutes. i check the status of my subscription, it is still active until 2015.8.16. How can I solve this problem?