When information cannot be properly retrieved or obtained, it is called a retrieval error. This can occur when a computer system encounters a problem accessing or processing specific data. This situation can lead to malfunctions or incorrect results in processes that require accurate data to function correctly. A retrieval error can stem from various causes, such as incorrect system configuration, software compatibility issues, or human error during data handling. It is essential to resolve this type of problem quickly to ensure the proper functioning of systems and the reliability of the information processed.