An "Error Page" is a web page that appears when a user tries to access a website or a specific page that cannot be found or is unavailable. Common types of error pages include the 404 Error Page, which indicates that the requested page does not exist, and the 500 Error Page, which signals a server issue. These pages often provide a message explaining the error and may include links to help users navigate back to the main site. Error pages are important for user experience, as they inform visitors about the issue and guide them on what to do next. Many websites customize their error pages to maintain brand consistency and offer helpful resources, such as a search bar or links to popular sections of the site. This approach can reduce frustration and keep users engaged even when they encounter problems.