Debug Error Joomla
How to put Joomla in debug mode
How to enable error reporting



When troubleshooting various issues in Joomla 3.0, you may find it beneficial to put your website in debug mode.
Enabling the debug system allows you to see details about how Joomla is rendering your site, including:

Debug

Session Data
Profile Information
Memory Usage
Database Queries

Debug

Log into your Joomla 3.0 control panel
In the left menu, click the Global Configuration link
You should see several tabs listed at the top of the page. Click the System tab
Under Debug Settings, find the setting labeled Debug System. Click Yes, and then click the Save button in the top left of the page.

System > Global configuration > System
Set "Debug" as yes








Debug



When you visit your Joomla 3.0 site again, you should see a list of debug information listed towards the bottom of the page (see the screenshot below). This information will be under a heading labeled:




Error reporting

Click on the Server tab
Locate the Error Reporting setting and click the System Default option
Scroll down the list of options and click the Maximum
Click Save or Save & Close: