How to Fix the WordPress White Screen
A blank white page usually means a plugin/theme conflict or a PHP memory limit. Here's how to bring your site back.
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1
Deactivate plugins
In cPanel File Manager, rename the wp-content/plugins folder to plugins-off. If the site returns, a plugin is the cause.
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2
Re-enable one by one
Rename it back, then disable plugins individually from the dashboard to find the culprit.
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3
Switch to a default theme
If plugins aren't it, rename your active theme folder so WordPress falls back to a default theme.
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4
Raise the memory limit
Add define('WP_MEMORY_LIMIT', '256M'); to wp-config.php if you see memory errors.