Use Debug tool to track fatal, MySQL, and warning errors on your site. For example error 500.
Use Dev tool during development processes to see changes you have made in the code immediately after refreshing the page.
How to enable DEBUG and DEV modes
The following steps apply to users of cPanel.
Login to your cPanel account.
Browse to the directory ow_includes in your oxwall installation path.
Open config.php file in the Edit mode.
In the end of the file, change the value of the constant OW_DEBUG_MODE or OW_DEV_MODE from false to true.
Once you are done with your activities, remember to change the value back to false in the live production environment.