Errorism is a frontend error management system coded in PHP and does not uses any type of Database. Errorism manages 404, 401, 403, 500, etc. frontend errors. The key feature of Errorism is that it fits everywhere in any type of existing/pre-installed software and also has theme changable system, i.e. it helps in creating full dynamic and customized error pages in html. Errorism's error management engine has a feature 'custom error Constructor' that helps in constructing custom errors while the error isn't even provided by Errorism. This gives Errorism the ability to create infinite error pages. This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.