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Why does my WordPress site show a white screen after activating a plugin?
A white screen right after activating a plugin almost always means a fatal PHP error is occurring before WordPress can render anything.This typically happens when the plugin is incompatible with your PHP version, conflicts with another plugin, or calls a function that no longer exists. The fastest wRead more
A white screen right after activating a plugin almost always means a fatal PHP error is occurring before WordPress can render anything.
This typically happens when the plugin is incompatible with your PHP version, conflicts with another plugin, or calls a function that no longer exists.
The fastest way to confirm this is to enable error logging by adding
define('WP_DEBUG', true);anddefine('WP_DEBUG_LOG', true);inwp-config.php. Reload the page and checkwp-content/debug.log. You’ll usually see the exact file and line causing the crash.Once you know the source, deactivate the plugin via FTP or file manager by renaming its folder. If the error mentions PHP 8.x issues, downgrading PHP temporarily or updating the plugin often resolves it. In some cases, replacing deprecated functions manually can be a short-term fix.
A common mistake is assuming the theme is at fault when the timing clearly points to the plugin activation.
See lessThe practical takeaway is to always check PHP compatibility before activating plugins on production sites.
Why does my WordPress site break after migrating to a new host?
Post-migration breakage usually comes from incorrect paths, missing files, or PHP version differences.Even when the database imports cleanly, environment differences can cause subtle failures. Start by checking PHP version compatibility and file permissions. Then confirm database credentials in wp-cRead more
Post-migration breakage usually comes from incorrect paths, missing files, or PHP version differences.
Even when the database imports cleanly, environment differences can cause subtle failures.
Start by checking PHP version compatibility and file permissions. Then confirm database credentials in
wp-config.php. Finally, run a search-and-replace to update old URLs.Serialized data can break if replaced incorrectly, so tools that understand serialization are essential. Manual SQL replacements often cause more harm than good.The key mistake is assuming “successful import” means “fully working site.”
See lessThe takeaway is to validate environment parity before and after migration.
Why does WooCommerce email sending fail silently?
Silent email failures usually occur because WordPress relies on PHP mail, which many hosts restrict.WooCommerce assumes mail delivery succeeds unless told otherwise. Configuring SMTP via a reliable mail service resolves most issues. Logs from SMTP plugins confirm delivery status.Spam filtering and iRead more
Silent email failures usually occur because WordPress relies on PHP mail, which many hosts restrict.
WooCommerce assumes mail delivery succeeds unless told otherwise.
Configuring SMTP via a reliable mail service resolves most issues. Logs from SMTP plugins confirm delivery status.Spam filtering and incorrect sender addresses can also block emails.The mistake is assuming “no error” means “email sent.”
See lessThe takeaway is to always use authenticated SMTP for transactional emails.
Why does WordPress show “There has been a critical error on this website” after updating PHP?
This error means a fatal PHP issue occurred that WordPress could not recover from.It commonly appears after a PHP upgrade when themes or plugins rely on deprecated functions or outdated syntax. Checking the recovery email or enabling WP_DEBUG_LOG usually reveals the exact cause. Functions removed inRead more
This error means a fatal PHP issue occurred that WordPress could not recover from.
It commonly appears after a PHP upgrade when themes or plugins rely on deprecated functions or outdated syntax.
Checking the recovery email or enabling
WP_DEBUG_LOGusually reveals the exact cause. Functions removed in newer PHP versions or strict type errors are frequent triggers.The fix is typically updating or replacing the incompatible plugin or theme. In urgent cases, temporarily downgrading PHP gives you access to fix the root issue.
A common mistake is assuming WordPress core is broken when the issue lies in custom code.
See lessThe takeaway is to test PHP upgrades in staging before applying them live.
How do I fix WooCommerce cart items disappearing after page refresh?
Cart items disappearing usually indicates session or cookie issues.WooCommerce relies on cookies to persist cart data across requests. Caching plugins, CDNs, or security headers can block or strip these cookies. Ensure cart and checkout pages are excluded from caching at all levels. Server-side objeRead more
Cart items disappearing usually indicates session or cookie issues.
WooCommerce relies on cookies to persist cart data across requests.
Caching plugins, CDNs, or security headers can block or strip these cookies. Ensure cart and checkout pages are excluded from caching at all levels.
Server-side object caching misconfigurations can also reset sessions unexpectedly. A frequent mistake is clearing cookies during testing and assuming WooCommerce is unstable.
The takeaway is that cart persistence depends heavily on correct cookie and cache handling.
See lessWhy does my WordPress site show outdated content after updates?
Outdated content usually means caching layers are not clearing properly.This can involve plugin caches, server caches, CDN caches, or even browser caching. Clearing only the WordPress cache plugin is often not enough. Verify hosting-level and CDN caches as well.Object caching can also serve stale daRead more
Outdated content usually means caching layers are not clearing properly.
This can involve plugin caches, server caches, CDN caches, or even browser caching.
Clearing only the WordPress cache plugin is often not enough. Verify hosting-level and CDN caches as well.Object caching can also serve stale database results if not flushed. The mistake is assuming one cache clear affects all layers.
The takeaway is to understand every caching layer in your stack.
See lessHow do I fix “Allowed memory size exhausted” errors in WordPress?
This error means WordPress hit the PHP memory limit while processing a request.It often appears during heavy operations like WooCommerce imports, backups, or page builder rendering. You can raise the limit by adding define('WP_MEMORY_LIMIT', '256M'); to wp-config.php. If the error persists, the servRead more
This error means WordPress hit the PHP memory limit while processing a request.
It often appears during heavy operations like WooCommerce imports, backups, or page builder rendering.
You can raise the limit by adding
define('WP_MEMORY_LIMIT', '256M');towp-config.php.If the error persists, the server-level PHP memory limit is lower and needs to be increased via
php.inior hosting control panel.The underlying cause is usually inefficient plugins, large queries, or unoptimized WooCommerce extensions. Disabling non-essential plugins and testing again helps narrow it down quickly. One common oversight is increasing WordPress memory but not PHP memory, which makes the change ineffective.
See lessThe key takeaway is that memory errors are often symptoms of deeper performance problems, not just low limits.
How do I fix mixed content warnings after enabling HTTPS on WordPress?
Mixed content warnings occur when assets still load over HTTP.This usually happens after enabling HTTPS without updating stored URLs. Run a search-and-replace for http:// to https:// in the database. Then inspect theme and plugin files for hardcoded URLs. Browser dev tools help identify remaining ofRead more
Mixed content warnings occur when assets still load over HTTP.
This usually happens after enabling HTTPS without updating stored URLs.
Run a search-and-replace for
http://tohttps://in the database. Then inspect theme and plugin files for hardcoded URLs.Browser dev tools help identify remaining offenders quickly. A common mistake is relying only on redirects instead of fixing the root URLs.
See lessThe takeaway is that HTTPS requires clean asset references, not just SSL certificates.
Why does WordPress cron fail to run scheduled tasks?
WordPress cron depends on site traffic and can fail on low-traffic sites.Blocked loopback requests also prevent tasks from running. Disabling WP-Cron and setting a real server cron job improves reliability. Logs help identify failing tasks. Security plugins and firewalls can block cron requests sileRead more
WordPress cron depends on site traffic and can fail on low-traffic sites.
Blocked loopback requests also prevent tasks from running. Disabling WP-Cron and setting a real server cron job improves reliability. Logs help identify failing tasks.
Security plugins and firewalls can block cron requests silently. The mistake is assuming cron runs automatically like system cron.
See lessThe takeaway is to use real cron jobs for mission-critical tasks.
Why does WordPress show 500 errors after restoring a backup?
500 errors after restores usually indicate permission or configuration issues.Files may not have correct ownership, or .htaccess rules may be incompatible. Reset file permissions and regenerate .htaccess via permalinks. Check PHP version alignment with the backup source. Server error logs provide prRead more
500 errors after restores usually indicate permission or configuration issues.
Files may not have correct ownership, or
.htaccessrules may be incompatible.Reset file permissions and regenerate
.htaccessvia permalinks. Check PHP version alignment with the backup source.Server error logs provide precise failure reasons.The common mistake is ignoring server-level differences during restore. The takeaway is that restores must respect hosting environment constraints.
See less