How can I remove some outstanding in bank reconciliation?

I received someone else's work and have done credit cards reconciliation for 3 months.

I  found that fiscal year ending balance between bank record and trial balance are not matched. So I reversed the old sage transaction which was $60.00 from no where.

Now bank reconciliation shows the $60.00 as outstanding credit card payment.

My co-worker and I have no idea where this money comes from.

I dig out nearly 3 years record, but there was no extra payment or purchase exist for this records.

Is there any way that I can get rid of this amount from my bank reconciliation page without giving any effect to credit card balance?

Whatever journal entry I made to remove it, sage recognized it as a purchase and credit card balance goes up again.