Displaying errors on the screen in cPanel
How to enable or disable error display in the cPanel control panel.
Sometimes, when debugging a website or CMS, you need to determine the cause of a crash—for example, why a page returns a 500 error, displays a white screen, or experiences another error. To identify the source of the problem, you need to temporarily enable the error display on the screen.
Note
By default the display_errors option on shared hosting is set to Off, i.e. error display is disabled
Go to "Software → Editor MultiPHP INI"

Select the domain to edit and set display_errors to On.

Press "Apply " to save the settings.
On the same screen you can also change "Basic PHP INI Settings"
Now you will be able to see the errors on the screen when you open your site or a specific page in the browser.
Enable this option (display_errors) only for the time of debugging the site (CMS, errors on the site), after completion be sure to disable it.
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