A five thousand dollar difference is significant. Are you certain that the Unpaid invoices is the correct total or are there missing A/P Invoices that need to be entered? Did the A/P Payables account balance get set up incorrectly? When did the discrepancy occur, in 2014 or a prior year? These are just some of the questions which should be addressed to be sure that the adjustment made to bring the Payables account in balance with the Payables Module is being done correctly. The result will affect the year end figures and may require adjustment to tax filings. A lot more certainty of the exact problem is required.
The Accounts Payable issue should be corrected before moving into 2015. Depending on the cause the program may hiccup when processing the year end change.
If you want more specific help with this issue I would suggest contacting a Sage 50 Canadian Consultant who could provide more detailed help. Yes, it may cost a little bit to resolve but better now than later.

Thank you very much for your reply. I think I figured it out. MY opening balance for A/P was incorrect and I think it's fixed now its no longer imbalanced. I was able to close 2014 and can now start to enter 2015.
I appreciate your help.