🔴correção de erro 500 interno do servidor wordpress

WordPress 500 Internal Server Error Fix

A 500 Internal Server Error in WordPress means the web server encountered an unexpected condition. Unlike a WordPress-specific error, this comes from the server itself — making it harder to diagnose without knowing where to look. The most common causes are a corrupted .htaccess file or PHP memory exhaustion.

⚡ Response in minutes🔒 No data loss🛠️ WP-CLI + FTP + SSH✅ Same-day fix🌎 Remote — works anywhere

Why Does This Error Happen?

Most common causes we diagnose:

▸Corrupted .htaccess file (most common cause)

▸PHP memory limit exhausted

▸Corrupted WordPress core files

▸Incompatible plugin or theme

▸PHP timeout on large database queries

How We Fix It — Step by Step

Systematic, fast, and safe process:

Check the .htaccess file

Rename .htaccess to .htaccess_backup and regenerate it from WordPress Settings > Permalinks. Save without changes to regenerate a clean .htaccess.

Increase PHP memory limit

Add define("WP_MEMORY_LIMIT", "256M") to wp-config.php above the "That's all, stop editing!" line.

Disable all plugins via FTP

Rename the /wp-content/plugins/ folder to plugins_disabled. If the error disappears, re-enable plugins one by one.

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Frequently Asked Questions

QWhat causes WordPress 500 errors?

Most commonly: corrupted .htaccess, PHP memory exhaustion, or a bad plugin/theme file. Less commonly: PHP version incompatibility or server misconfiguration.

QHow long to fix a WordPress 500 error?

Usually 30-90 minutes depending on the root cause.

QIs a 500 error the same as the white screen of death?

Not exactly. A 500 error shows a browser error page. The white screen of death shows a blank page. Both are PHP fatal errors but triggered at different levels.

QDoes the WordPress site itself trigger 500 errors or is it the server?

Both can. WordPress can fail to bootstrap and the server returns 500 because no usable PHP output was produced. Or the server (Apache/Nginx) itself can return 500 because of a config error before WordPress runs. Reviewing the server access log distinguishes the two.

QCan a wrong .htaccess directive cause a 500 error site-wide?

Yes. A single invalid line in .htaccess (a typo, an unsupported directive, or a duplicated <IfModule> block) makes Apache abort the request with HTTP 500. Renaming .htaccess to .htaccess_old and reloading is the fastest test.

QHow do I check the exact 500 error from the hosting panel?

In cPanel/Plesk go to 'Errors' or 'Error Log'. The most recent entries show the file path and line number that crashed. Look for entries like 'PHP Fatal error', 'AH00124' (Apache), or 'FastCGI' messages.

QWill fixing 500 errors require taking the site offline?

Usually no. Most fixes happen via FTP file edits or hosting panel — visitors keep getting the 500 page until we fix it, but no extra downtime is added.

QCan a CDN like Cloudflare hide or worsen a 500 error?

Cloudflare may serve the cached 500 page even after the underlying issue is fixed. We always purge Cloudflare cache and bypass it to /etc/hosts during diagnosis to confirm what the origin really returns.

QWhy does the 500 error happen only on POST requests (forms, login)?

POST-only 500s usually mean a security plugin or ModSecurity rule is rejecting the body. We review the modsec_audit log and adjust the offending rule rather than disabling all WAF protection.

QCan wrong file or folder permissions cause 500 errors?

Yes. Files set to 777 trigger many shared-host security rules and produce 500. Correct permissions: directories 755, files 644, wp-config.php 600. We fix permissions recursively with find + chmod.

QCan corrupted .htaccess be regenerated automatically?

Yes. Delete .htaccess and visit Settings → Permalinks → Save (no changes). WordPress regenerates a clean default .htaccess. If you have custom rules, we extract them first from a backup.

QIs a 500 error always related to PHP?

Not always. Reverse proxy timeouts, FastCGI crashes, MySQL connection failures, and disk-full conditions also produce 500. We check disk space (df -h) and MySQL status before assuming PHP.

QCan a 500 error be intermittent — appear sometimes only?

Yes. Common causes of flapping 500s: rate-limited PHP-FPM workers, MySQL max_connections reached during traffic peaks, or a cron job using all PHP processes momentarily.

QDo 500 errors hurt SEO if they happen briefly?

Brief 500s (under an hour) usually have no SEO impact — Googlebot retries. Sustained 500s (over 24 hours) cause crawl rate reduction and can drop indexed pages. We treat persistent 500s as urgent.

QCan you fix the 500 error without WP admin access?

Yes. We work through FTP/SSH and the hosting panel. WP admin access helps, but for 500 errors we usually have to bypass it anyway since admin is normally also affected.