WordPress is remarkably stable and reliable when properly maintained. Yet even well-managed sites occasionally encounter problems that confuse business owners and seem to require expensive professional help.
The good news: Most common WordPress problems have straightforward solutions. This guide helps you understand what’s happening, solve it yourself if possible, or know when to call a professional.
Problem #1: White Screen of Death (Blank Page)
The dreaded white screen appears instead of your website. Nothing is displayed—no error message, just white.
What It Means
Your WordPress site encountered a fatal error (usually a PHP error) that it can’t recover from. Often caused by:
- Plugin conflict or incompatibility
- Theme conflict with WordPress version
- Too many plugins consuming server resources
- Corrupted .htaccess file
- Low memory limit in server configuration
How to Fix It
Step 1: Enable Debug Mode (if technical)
Add these lines to wp-config.php:
define('WP_DEBUG', true);
define('WP_DEBUG_LOG', true);
define('WP_DEBUG_DISPLAY', false);
Check debug.log for error messages indicating the problem.
Step 2: Disable All Plugins
Access site via FTP or file manager. Go to /wp-content and rename “plugins” folder to “plugins-old”. This disables all plugins without accessing WordPress.
Try accessing your site. If white screen is gone, a plugin caused it.
Rename folder back to “plugins”, then rename individual plugins one by one, reloading site after each to identify culprit.
Step 3: Switch to Default Theme
If not plugins, switch to WordPress default theme (Twenty Twenty-Four). If white screen disappears, your active theme caused it. Activate default theme and contact theme support.
Step 4: Increase PHP Memory Limit
Add this line to wp-config.php:
define('WP_MEMORY_LIMIT', '256M');
Sometimes insufficient memory causes white screens.
Step 5: Check .htaccess
Access site via FTP. Check .htaccess file in root directory. If corrupted, delete it. WordPress can regenerate it.
When to Call a Professional
- You’re uncomfortable accessing files via FTP or file manager
- White screen persists after above steps
- You’re unsure how to edit wp-config.php safely
- You don’t have FTP/file manager access
- Time is critical and you can’t afford troubleshooting
Professional fix usually costs $100-300.
Problem #2: WordPress Login Loop (Can’t Access Admin)
You enter credentials on login page, but after submitting, you’re redirected back to login page. Your login never “sticks.”
What It Means
Usually a cookie or session issue. WordPress can’t maintain your login session. Causes:
- Cookie issues (disabled in browser, wrong domain, expired)
- SSL certificate problems
- Plugin interfering with authentication
- WordPress configuration issue
- Corrupted .htaccess file
How to Fix It
Step 1: Clear Cookies and Browser Cache
Clear browser cookies and cache for your website domain. Try logging in again.
If on different device, try logging in from there to see if it’s browser-specific.
Step 2: Disable SSL Redirects Temporarily
If you just switched to HTTPS, this sometimes causes loops. In wp-config.php, add:
define('FORCE_SSL_LOGIN', false);
define('FORCE_SSL_ADMIN', false);
Try logging in. If it works, the issue is SSL configuration.
Step 3: Disable All Plugins Again
White screen method above (rename plugins folder) can identify if plugin is causing auth issues.
Step 4: Check .htaccess
Corrupted .htaccess sometimes causes login loops. Delete .htaccess and let WordPress regenerate it.
Step 5: Reset WordPress Authentication Keys
Go to wordpress.org and visit https://api.wordpress.org/secret-key/1.1/salt/. This generates new authentication keys.
Copy generated keys and paste into wp-config.php, replacing old AUTH_KEY, SECURE_AUTH_KEY, etc.
This logs out everyone and refreshes authentication system.
When to Call a Professional
- You’re not comfortable editing wp-config.php
- Above steps don’t resolve the issue
- You can’t access files via FTP
- You need access urgently and troubleshooting takes too long
Professional fix usually costs $75-200.
Problem #3: Site Crashes During Traffic Spikes
Your site loads fine normally, but when traffic spikes (after advertising campaign, viral social post, seasonal rush), the site becomes slow or crashes.
What It Means
Server doesn’t have enough resources for increased traffic. Causes:
- Inadequate hosting for traffic volume
- Unoptimized database queries running slowly
- Too many plugins slowing site down
- Poor image optimization (huge files)
- Missing caching or CDN
How to Fix It
Step 1: Enable Caching
Install caching plugin (WP Super Cache, W3 Total Cache). These reduce server load dramatically during traffic spikes.
Step 2: Optimize Images
Compress all images (use Smush plugin or TinyPNG). Large images are massive resource hogs during traffic spikes.
Step 3: Review and Remove Unnecessary Plugins
Every plugin consumes resources. Remove plugins you don’t actually use.
Step 4: Database Optimization
Use plugin like Advanced Database Cleaner to remove spam comments, old revisions, transient data.
Step 5: Upgrade Hosting
If above steps don’t help, you’ve simply outgrown your hosting. Upgrade from shared hosting to VPS or managed WordPress hosting.
When to Call a Professional
- Caching and optimization don’t help
- You need to upgrade hosting and want professional guidance
- You’re unsure which changes are safe
- You need performance improvements quickly
Professional optimization usually costs $200-500. Hosting upgrade costs $20-80 more monthly.
Problem #4: WordPress Admin Dashboard Very Slow
The WordPress admin backend (where you edit posts and pages) is painfully slow, but frontend site loads fine.
What It Means
Usually excessive database queries or problematic plugins. Your site works fine for visitors, but admin is bogged down. Causes:
- Plugin with inefficient queries running in admin
- Too many scheduled tasks (cron jobs)
- Corrupted database
- Poor database performance
How to Fix It
Step 1: Disable Admin-Related Plugins
Disable plugins one by one and check if admin becomes faster. This identifies culprit.
Common culprits: Backup plugins, security plugins, analytics plugins running background processes.
Step 2: Reduce Cron Job Frequency
Some plugins spawn background tasks that bog down admin. In wp-config.php, disable WordPress cron:
define('DISABLE_WP_CRON', true);
Then set up real cron job via hosting control panel.
Step 3: Optimize Database
Use database optimization plugin to clean up transient data, old revisions, etc.
Step 4: Reduce Plugin Count
Too many plugins (especially poorly coded ones) slow admin. Remove unnecessary ones.
When to Call a Professional
- You’re uncomfortable disabling plugins or editing config files
- Performance is severely impacting your ability to manage site
- You can’t identify problematic plugin
Professional diagnosis and fixing usually costs $150-350.
Problem #5: Site Getting Hacked or Malware Infected
You notice your site behaving strangely, spam appearing, redirects to suspicious sites, or security plugin alerts.
What It Means
Your WordPress site has been compromised. Hacker injected malware, spam, or malicious code. This is serious and requires immediate action.
How to Fix It
STOP: This is serious. Consider professional help immediately.
If you want to attempt cleanup:
Step 1: Verify and Restore from Backup
If you have clean backup from before infection, restore it. This is fastest and most reliable solution.
If no backup, proceed to manual cleanup (below).
Step 2: Run Security Scan
Use Wordfence or Sucuri security plugin to scan for malware and infected files.
Plugin will identify and quarantine malicious files.
Step 3: Manually Inspect
Check wp-content/plugins and wp-content/themes for suspicious files (unusual .php files, modified core files).
Step 4: Change All Passwords
Change WordPress admin password, FTP password, database password, hosting control panel password.
Step 5: Verify No Backdoors
Hackers often leave backdoor access methods (hidden admin accounts, modified code). This requires technical expertise to verify.
When to Call a Professional
HIGHLY RECOMMENDED: Professional malware cleanup is worth the cost.
- You lack technical confidence
- You need malware completely removed to avoid re-infection
- You need verification that no backdoors remain
- You need to prevent future compromises
Professional malware cleanup costs $200-500. Not clearing it properly can cost far more in ongoing problems.
Problem #6: Contact Form Not Sending Emails
Visitors submit contact form, but you don’t receive emails.
What It Means
Usually a mail server configuration issue. WordPress can’t send emails due to:
- Hosting doesn’t allow email sending
- Incorrect mail settings configured
- Plugin conflict
- Server-level mail restrictions
How to Fix It
Step 1: Test Email
Install Mailgun or SendGrid email service (free tier usually available). These handle email sending reliably.
Configure your form plugin to use one of these services.
Step 2: Verify Spam Folder
Contact form emails might be going to your spam folder. Check spam folder for test emails.
Step 3: Check Form Plugin Settings
Review contact form plugin (Gravity Forms, WPForms, etc.) to verify:
- Correct recipient email address
- Email validation working correctly
- Form actually submitting (check submission logs)
Step 4: Review Hosting Email Limits
Some hosting limits email sends per hour. Check with hosting provider.
When to Call a Professional
- Emails still not sending after above steps
- You’re losing leads due to contact form failures
- You’re unsure how to configure email service
Professional fix usually costs $75-150.
Problem #7: Broken Links After Migrating Hosting or Site Changes
After migrating hosts or changing site URL, many links are broken, images aren’t loading, or site looks wrong.
What It Means
URLs changed but WordPress and content still reference old URLs. Common after:
- Moving site from domain.com to newdomain.com
- Moving from http to https
- Moving from www.domain.com to domain.com
- Migrating hosting to different server
How to Fix It
Step 1: Update WordPress Settings
In WordPress admin, go to Settings > General. Verify:
- WordPress Address (URL) is correct
- Site Address (URL) is correct
Step 2: Use Find and Replace Plugin
Install Better Search Replace plugin. Use it to:
- Find: old domain/URL
- Replace with: new domain/URL
- Check all tables
Example:
- Find: https://olddomain.com
- Replace: https://newdomain.com
This fixes internal links, image references, etc.
Step 3: Check .htaccess for Redirects
Set up 301 redirects from old URLs to new URLs in .htaccess. This preserves SEO and ensures old links still work.
Example:
RewriteEngine On
RewriteCond %{HTTP_HOST} ^olddomain.com [NC]
RewriteRule ^(.*)$ https://newdomain.com/$1 [L,R=301]
Step 4: Submit Sitemap to Google
Go to Google Search Console, submit updated XML sitemap for new URL. This tells Google about the change.
When to Call a Professional
- You’re uncomfortable with Find and Replace
- Site migration was complex with multiple issues
- You need SEO impact minimized
Professional site migration fixes usually cost $150-400.
Problem #8: Out of Memory Error
You see error: “Fatal error: Allowed memory size of X bytes exhausted”
What It Means
WordPress or a process ran out of allocated memory. Causes:
- PHP memory limit too low for your site’s needs
- Plugin or process consuming excessive memory
- Large image processing or backup operation
How to Fix It
Step 1: Increase PHP Memory Limit
Add to wp-config.php:
define('WP_MEMORY_LIMIT', '256M');
define('WP_MAX_MEMORY_LIMIT', '512M');
Save and test.
Step 2: Identify Memory Hog
Disable plugins one by one to identify which consumes excessive memory.
Common culprits: Backup plugins, image processing plugins, poorly coded plugins.
Step 3: Optimize Database
Delete unnecessary data (spam comments, old revisions, transient data) to reduce memory requirements.
Step 4: Upgrade Hosting
If you’ve increased memory limit to reasonable amount (256M+) and still getting errors, your site needs more resources. Upgrade hosting.
When to Call a Professional
- You’re uncomfortable editing wp-config.php
- Increasing memory limit doesn’t help
- You’re unsure how much memory you actually need
Professional diagnosis usually costs $75-150.
Quick Reference: When to DIY vs. When to Call a Professional
DIY if:
- Problem is clearly identified and solution is straightforward
- You’re comfortable with WordPress admin and file access
- You have time to troubleshoot and test solutions
- Cost of your time is low relative to professional help
- Problem isn’t causing critical site failure
Call a professional if:
- Site is down or broken (lost leads/revenue)
- Security or malware issue (serious problem)
- You lack technical confidence
- You don’t have time to troubleshoot
- Multiple solutions have failed
- Your time value exceeds cost of professional help
Professional WordPress troubleshooting typically costs:
- Diagnostic/emergency: $100-300
- Minor issue fix: $75-200
- Significant problem: $200-500
- Malware cleanup: $300-800
- Emergency 24-hour response: 2-3X normal rates
Preventing Common Problems
An ounce of prevention prevents pounds of problems:
Weekly:
- Verify backups completed
- Check for security alerts
- Monitor site is accessible
Monthly:
- Apply WordPress and plugin updates
- Test contact forms
- Check for broken links
- Review error logs
Quarterly:
- Database optimization
- Security scan
- Comprehensive backup test
- Review and remove unused plugins
Annually:
- Major security audit
- Hosting review and optimization
- Strategy review
When to Call Boulder Web Solutions
We handle WordPress problems ranging from simple configuration issues to complex malware recovery. We can:
- Diagnose and fix WordPress problems
- Optimize slow sites
- Clean malware infections
- Recover from backups
- Migrate sites properly
- Optimize database and performance
- Set up proper security and monitoring
- Provide ongoing maintenance to prevent problems
Emergency support: We offer emergency WordPress support for critical issues. Call for same-day response rates.
Conclusion: Most WordPress Problems Are Fixable
WordPress is remarkably stable. Problems, when they do occur, are usually fixable with systematic troubleshooting.
Knowing when to DIY and when to call professionals saves you time and money. Keep regular backups, stay updated, monitor your site, and address problems quickly.
The businesses with fewest WordPress problems are those maintaining them proactively rather than reactively. Regular maintenance prevents most problems entirely.
WordPress acting up? Contact Boulder Web Solutions. We’ll diagnose the problem, explain your options, and fix it quickly so you can get back to running your business.

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