What Does 500 Internal Server Error Mean and How to Fix It? | Sunny HQ

How to Fix 500 Internal Server Error

Last Updated on October 28, 2025 by Sunny Staff

We’ve all encountered it — an error that tells us something is wrong on the website you’re visiting. This is a 500 Internal Server Error, and it’s usually a problem with the website’s server rather than your browser or device.

Key Takeaways

  • 500 errors = server-side issues — often caused by faulty code, plugins, or configuration.
  • Users can try clearing cache, deleting cookies, or simply reloading the page.
  • Site owners should check updates, disable plugins/themes, or contact their host.
  • Keeping WordPress, themes, and plugins current prevents many 500 errors.
  • Managed hosting (like Sunny HQ) handles troubleshooting and monitoring for you.

Quick Reference

Item Details
Error Type HTTP 500 – Internal Server Error
Applies To Both users & site owners
User Fix Time 1–3 minutes (clear cache / reload)
Website Fix Time 5–30 minutes (simple plugin issue) → hours (complex server fault)
Risk Level Medium – can affect SEO and visitor trust if unresolved

In this post

The Many Faces of a 500 Error
How to Fix a 500 Error – Users
How to Fix a 500 Error – Websites
Key Definitions
FAQ

Key Definitions

Term Meaning
HTTP 500 Generic internal server error indicating that something went wrong on the website’s server.
Cache Temporary storage used by browsers or servers to speed up content delivery; can cause outdated pages to load.
Cookies Small data files stored by your browser; clearing them can solve authentication or session issues.
PHP Memory Limit The maximum amount of memory WordPress can use; increasing it can prevent crashes during heavy tasks.

The Many Faces of a 500 Internal Server Error

500 server errors are almost inevitable, so many websites customize their messages to explain why a page isn’t working.

Typical error messages include:

  • “Oops, something went wrong!”
  • “We can’t find that page.”
  • “The server was unable to complete your request.”
  • “[Name] will be back soon / is offline.”

YouTube’s humor stands out: “Sorry, something went wrong. A team of highly trained monkeys has been dispatched to deal with this situation.”

How to Fix a 500 Internal Server Error – Users

Although 500 errors usually originate from the website, users can sometimes fix them locally.

Steps to try:

  • Reload the page. Some sites display a 500 message for temporary issues such as a 504 timeout. Refreshing may work if the request simply expired.
  • Clear your browser cache. A cached version of a page may be outdated or broken. Regularly clearing cache prevents recurrence.
  • Delete cookies. You’ll need to log in again to password-protected sites, but it’s a good security practice to reset credentials periodically. (See how to secure a WordPress site.)

If these steps don’t help, wait and try again later. If you’re feeling generous, go to the site’s home page and use the contact form to report the issue.

internal server error

How to Fix a 500 Internal Server Error – Websites

If you’re new to WordPress, don’t panic — server errors happen to everyone. The key is to troubleshoot methodically.

1. Update everything

Outdated software is a leading cause of 500 errors. Ensure WordPress core, themes, and plugins are all current. Older plugins can break compatibility or expose your site to security risks. Enable automatic updates or set alerts in your security plugin when new versions are released.

2. Reset or deactivate plugins

If updates don’t help, temporarily disable all plugins to isolate the culprit. You can do this through the admin area or via FTP by renaming the /wp-content/plugins folder. If the error disappears, re-enable plugins one by one to find the cause.

3. Check your theme

An outdated or corrupted theme can also trigger 500 errors. Switch temporarily to a default theme (like Twenty Twenty-Four) to test. If your custom theme is the issue, update or replace it.

4. Review .htaccess and PHP limits

Sometimes the problem lies in configuration. Regenerate your .htaccess file by saving new permalink settings, or increase PHP memory in wp-config.php if you see “memory exhausted” messages.

5. Contact your host

If you’re using managed hosting such as Sunny HQ, your team can usually identify and fix the cause quickly. If you’re on shared or unmanaged hosting, report the exact time of the error and steps to reproduce it — this helps your provider locate relevant log entries.

6. Check server logs

Access your hosting control panel (often cPanel or Plesk) → Logs > Error Logs. Look for PHP errors or plugin file paths that coincide with the timestamp of the issue.

Once resolved, clear your site cache and CDN cache to ensure the repaired version is served. (See our cache clearing guide for details.)

It’s best to fix 500 errors promptly since repeated failures can affect search visibility. If you’d like a team to monitor and prevent them entirely, explore Sunny HQ’s WordPress care plans.

Frequently Asked Questions (FAQ)

What causes a 500 Internal Server Error in WordPress?

Common causes include incompatible plugins, corrupted .htaccess files, exceeded PHP limits, or temporary server misconfigurations.

Will a 500 error hurt SEO?

If the issue persists for hours or days, search engines may temporarily drop the affected URLs. Resolving it quickly and submitting a fix in Google Search Console prevents long-term impact.

Can caching plugins cause 500 errors?

Yes. Misconfigured caching or outdated cache files can trigger internal server errors. Clear cache or temporarily disable the caching plugin to test.

Should I edit server files myself?

Only if you’re comfortable with FTP or file managers. Otherwise, let your managed host handle it — a single typo in .htaccess or wp-config.php can take the site offline.

How can I prevent future 500 errors?

Keep WordPress, themes, and plugins updated; use reliable managed hosting; monitor logs; and schedule regular site health checks.

Need a Hand Fixing Server Errors?

Don’t waste hours debugging 500 errors. The Sunny HQ team will identify the cause, repair it, and harden your site against future failures — all included in our WordPress Maintenance Services. Contact us today for fast, white-glove assistance.