We know Joomla allways had a problem is frontpage and category pagination with duplicate title and content when we check the page 1 and page 2, When you take a look at your average SERP, you shoud to make each page have unique titles, descriptions, and most importantly. content.
Ever wanted that ability to show your bio biography within your joomla articles at the bottom of every contents? This is indispensable for multi-authored blogs, adding the Author bio box of each author' s post at the bottom is a good way to give props to the author as well as providing information to the readers as to who that person is without having to refer to an about me page.
Firstly, Joomla includes an error.php file which can be overridden in your template for maximum customization. If it is not already included in your template folder, just copy the file from the system template folder at templates/system/error.php.