An Error Log is a record that captures errors and issues that occur within a software application or system. It helps developers and system administrators identify problems by providing detailed information about what went wrong, including timestamps, error messages, and sometimes the state of the system when the error occurred. This information is crucial for troubleshooting and improving software reliability. Error logs can be generated by various systems, including web servers, databases, and applications. They are often stored in plain text files or databases, making it easy to review and analyze. Tools like log analyzers can help automate the process of monitoring these logs, allowing for quicker responses to issues.