Deutsche Bank wrongly transferred 21 billion euros to the Australian Investment Bank Macquarie in 2014. This is the latest such error to come to light. The transfer was a human error and not related to faulty technology, said a person familiar with the matter. It was corrected within a few hours and didn’t result in any financial damages. In March, Deutsche Bank transferred 28 billion euros ($33 billion) instead of 28 billion yen ($257 million) to its own account at the derivative exchange Eurex.