Joomla Troubleshooter. Error 500 after theme installation

This tutorial shows how to resolve issue with error 500 after the Joomla Joomla is an award-winning content management system (CMS), which enables you to build Web sites and powerful online applications. Many aspects, including its ease-of-use and extensibility, have made Joomla the most popular Web site software available. Best of all, Joomla is an open source solution that is freely available to everyone. 1.6 template installation.

1. Open templates/theme###/templateDetails.xml file and make sure theme name is the same as templates/theme### directory name. Theme name is locate in the tag <name></name>

2. Make sure theme name and theme directory title don’t contain any special characters (#, $, %, ^, & etc) or spaces

3. If you installed template using Discover option access your database and open  jos_template_styles table. Make sure theme### name is the same as the theme directory title and <name> tag value in the templateDetails.xml file.

Otherwise click Edit icon and change the theme name