adding bank account to the supplier we have received a error'Failed to lock the record in table

Summary:

we are trying to assign a new bank account to a supplier record received the error message 'Failed to lock the record in table' after selecting the Save button. I attempted the same action on the supplier record and received the same error message.  we tried after 30 mins it is got added successfully.

Please provide assistance understanding the error message for future reference.

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