variance

Hello,
Asking for help on how to reconcile left-over bank statement transactions that were not reconciled from June 2021 - Dec 2021.
Bank reconciliations were done on a weekly basis, however, for some reason about 1 - 6 transactions were left per month.

Situation mentioned above is now causing a huge variance between the closing bank statement balance and the calculated closing balance.

Any idea on how to correctly go about this?

Thank you

Mavelle