Outstanding amount in reconciliation

SOLVED

I am new to the position of bookkeeper at a business that has been using Simply for years.  I did a reconciliation and everything looked fine.  Unresolved: 0.00 Discrepancies: 0.00.  For some strange reason, I decided to add up my outstanding amounts, and it came out different than what Simply is telling me at the bottom of the reconciliation.  It is out by 400.45.  Weird!!  I search that amount and the only time it appears is back in 2008 and it is a credit card charge, nothing to do with the bank account.  I went into reports and did a report of outstanding and the 400.45 does NOT appear and the total on the report is the same as what I came up with when I added them up in the reconciliation.  I would just disregard it, except, if I take my Bank balance and subtract the outstandings from the report that agrees with my manual calculations, I'm out by, you guessed it 400.45?????????????  HELP!!!!