Fix WordPress 500 Internal Server Error

The Problem

A 500 error gives you almost no information by itself — it could be a plugin, a corrupted .htaccess, a PHP fatal error, or a server-level limit, and guessing wastes time your site is down.

About this problem

A 500 Internal Server Error is a generic response from the web server that something failed while processing the request. In WordPress the cause is typically a fatal PHP error from a plugin or theme, a corrupted or invalid .htaccess file, an exhausted PHP memory limit, a wrong PHP version or a file permission problem. The actual detail is only in the server or PHP error logs.

People usually come looking for this just after an update, a plugin installation or a migration, when the whole site or only wp-admin suddenly stops loading. Since the browser shows no detail, owners have little to go on.

What's Included

• Reviewing server and PHP error logs to find the actual cause
• Testing plugins/theme in isolation if a conflict is suspected
• Checking and repairing .htaccess if that's the trigger
• Restoring normal site access with the cause documented

What's NOT Included

• Fixing a theme or plugin that's fundamentally broken beyond a config fix (would be flagged)
• Data recovery if the cause was a bad database change
• Hosting-level outages outside of your site's own configuration

How It Works

1. I read the web server and PHP error logs for the time of the failure to find the actual fatal error or rule that triggers it.
2. I test whether .htaccess is the cause by renaming it temporarily and then regenerate a clean default version if needed.
3. If the logs point to a plugin or theme, I deactivate components one at a time, or from the file system if wp-admin is unreachable.
4. I check the PHP version, memory limit and file permissions for mismatches with what the site requires.
5. I apply the smallest fix that resolves the error, and bring the disabled components back wherever possible.
6. I confirm that the front end and wp-admin both load, and document the cause.

In practice: you buy the service, send over whatever access or details the job needs, I investigate and do the work, and you confirm it's resolved before we call it done.

Frequently Asked Questions

What causes a 500 internal server error in WordPress?

Common causes are a broken plugin or theme, a corrupt .htaccess file, a PHP memory limit or a PHP version mismatch. The logs show which one applies.

Can you fix it if I cannot log in to wp-admin?

Yes, I can work from the files or the server directly, which does not require wp-admin access.

Will I lose any data?

Normally not, since the problem is in configuration or code, not in content. A problem caused by a bad database change is different and not covered here.

What if the problem is my hosting provider?

Host-level outages are outside the site's own configuration. I can identify that the host is at fault but cannot fix their infrastructure.

What if my theme or plugin is fundamentally broken?

If it needs more than a configuration fix, I will flag that rather than promise a repair. A rebuild would be a separate piece of work.

Will you update all my plugins?

Only what is needed to fix this error. Wider updating is not part of this service.