1.If you have added any opening balance in customer sections, please edit/remove the balance.
Step 1: Click on the Customers.
Step 2: Select the Customer and Click on Edit.
Step 3: Check the debit/credit in the Opening balance >> edit/remove >> Click on Save.
2.If a customer a closing balance from the previous year, will be taken as present year opening balance.
Please check the previous year transactions.
Step 1: Click on the Customers.
Step 2: Select the Customer and Click on Ledger.
Step 3: Select Custom Date Range >> check the transactions.