maybe if you can provide more information about the current id and model where you got this error ? ! and please enable the dev mode to get the name of this button.

and you are very welcome.

Thank you so much for replying

But how I will identify like these move lines are creating problem ?

The button is showing me like Reconcile 352 items, so how can I identify those counts causing errors ?

Thank you so much in advance

Allright, I am writing down the steps

1 - I have gone through Accounting Application

2 - Go at Accounting Dashboards

3 - So here I have one journal that is already connected with my bank account and here there is button showing me "reconcile 352 items"

4 - So by clicking on it it is giving me Odoo warning like A selected move line was already reconciled

How can I search those move lines creating problems ?

Can I do it directly by user interface without going to pgAdmin or by database ?

Try go to the menu Accounting/Journal Entries/Journal items , then search for the move lines related to your reference or journal entry, select them all then click on More/Unreconcile Entries . hope that helps you