Reckon Accounts 2013 needs to reactivate.

Horry YdoibotherHorry Ydoibother Member Posts: 3
edited August 2016 in Accounts Business Range
I have Reckon Accounts Premier 2013 and have been using it no trouble up until 2 days ago when it decided that I need to activate the product again. I tried doing so but was unable to do so because the security certificate was incorrect. I am able to use Reckon Accounts 2013 on 2 other computers and someone please explain why all of a sudden I need to re activate.
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