Thank you very much for your reply. So should I take the risk and submit the same old PCC? is there any drawback for doing this. Also, my dad received the mail from an automated mail id (i.e. donotreply@cic.gc.ca) but the attached document in the mail still says "Please reply directly to this email and put your application number in the title". Can you please tell me the email id to which you replied? and I understand I should also upload the same documents to MyCic as there I see two placeholders to upload PCC for my dad and mom respectively. Also, they asked me for the filled travel form IMM5562.I was in same situation like you .i had submitted original pcc along with application in July 2017.on June 4th 2018 officer sent me an email saying that(Documents outstanding are police certificates from All country where your parents lived more than 6 month ).
I replied to the same email by attaching the same old pcc which obtained in 2017,also I mentioned in email I have submitted the original pcc along with application for your reference here by I am attaching the same pcc once again.
On June 7th I received PPR email .
Try uploading the same old pcc.
Hope this helps you ...
Thanks in advance.