What is “There has been an error processing your request”?
“There has been an error processing your request” is a common error message that you will encounter when working with Magento. This message itself is NOT an error, but a notification on some errors occurring in your system.
We usually see this error message when installing a new Magento theme/module. The conflict between some components of Magento cause this error and Magento cannot operate properly. Another common cause is related to cache folder of Magento.
How to debug the error
As can be seen in the error page, we will need to check error log record number xxxxxxx. Error log files of Magento are generated in /var/report. You will need an FTP client to open the file and read error log.
You can also enable printing error by navigating to Magento/errors, you will find a file named local.xml.sample. Rename this file to local.xml. Next, flush Magento cache and reload the error page. Now you will see error displayed as below
Now you just need to solve the error displaying on the page. After that, the “There has been an error processing your request” message will disappear.