As the Accounts Receivable Technician, you have received a deposit

correction notification from the City's bank stating the deposit from 7/9/2020 was short by $5.25. The deposit included the following items:


OVERALL TOTAL
This deposit has been reduced by $5.25, you account deposit will reflect a corrected deposit of $18,461.27 If you require more information regarding this notification, please contact your bank representative.
Utilizing this information,
1.) How would you identify how the error occurred and,
2.) What are two possible errors what could have occurred?
3.) Based on the two identified errors, how would you correct these errors, if a correction is possible?