WooCommerce Fixes
I fix broken WooCommerce stores. Systematic troubleshooting for fatal errors, checkout failures, plugin conflicts, payment gateway failures, database corruption, and emergency recovery. Direct access to a developer who diagnoses root causes through logs, debugging tools, and systematic testing.
What I fix
WooCommerce troubleshooting covering fatal errors, checkout failures, payment gateway failures, plugin conflicts, database corruption, and update recovery. Diagnostic-first approach using Query Monitor, WooCommerce logs, browser console debugging, and server error analysis to identify root causes rather than treating symptoms.
Fatal Error Resolution
Fixing critical WooCommerce errors - white screen of death, memory exhaustion, PHP fatal errors, and complete store breakdowns. Emergency recovery with rollback capability.
Checkout Failure Diagnosis
Diagnosing broken checkout flows - payment gateway failures, JavaScript conflicts, session corruption, and order processing errors. Root cause identification using logs and browser debugging.
Plugin Conflict Testing
Systematic plugin conflict diagnosis. Identifying which extensions break WooCommerce, disabling problematic plugins, and finding stable alternatives or custom replacements.
Database Repair
Fixing corrupted WooCommerce tables, cleaning wp_options autoload bloat, repairing wc_sessions, clearing stuck transients, and restoring database integrity after plugin failures.
Payment Gateway Debugging
Fixing Stripe, PayPal, and payment gateway failures. Debugging API connection issues, webhook delivery failures, SSL certificate problems, and transaction processing errors.
Update Recovery
Fixing WooCommerce stores broken after core or plugin updates. Emergency rollback, compatibility patching, and stabilisation when updates introduce breaking changes.
Problems I solve
Helping businesses recover from broken WooCommerce stores and prevent recurrence. Emergency fixes for stores that are completely down, systematic diagnosis for intermittent issues, and stabilisation after failed updates or plugin conflicts.
WooCommerce store completely broken after plugin or core update
Emergency rollback to stable version via FTP or database, identifying the breaking change through error logs, and implementing compatibility patches. Restoring store functionality as first priority before permanent fixes.
Checkout failing - customers cannot complete orders
Diagnosing checkout flow using WooCommerce logs, browser console JavaScript errors, and payment gateway debug mode. Fixing JavaScript conflicts, corrupted sessions, and gateway integration problems systematically.
Payment gateways randomly failing or showing errors
Reviewing Stripe/PayPal debug logs, checking API credential validity, verifying webhook endpoint configuration, and testing SSL certificate. Fixing connection authentication and webhook delivery issues.
WooCommerce admin extremely slow or timing out
Identifying admin bottlenecks - Action Scheduler backlogs, wp_options bloat, plugin overhead, or PHP worker limitations. Implementing targeted fixes based on Query Monitor analysis.
Common WooCommerce Problems
Real troubleshooting scenarios from working on broken WooCommerce stores. Each issue requires different diagnostic approach.
White Screen of Death
Store frontend or admin shows blank white page. No error messages visible.
PHP memory exhaustion, fatal plugin errors, theme conflicts, or corrupted core files.
Enabling WP_DEBUG to identify error, increasing PHP memory limit, disabling problematic plugins via FTP, restoring from backup if needed.
Checkout Page Not Loading
Checkout page shows spinner indefinitely, or returns 500/503 error.
JavaScript conflicts from plugins, corrupted WooCommerce sessions, payment gateway script errors, or server timeout.
Checking browser console for JavaScript errors, reviewing WooCommerce logs, disabling cart fragments, testing with default theme.
Payment Failed Errors
Customers see "Payment failed" or "Unable to process payment" at checkout.
Invalid API credentials, expired SSL certificate, webhook misconfiguration, Stripe/PayPal account issues, or server blocking outbound requests.
Verifying API keys, checking SSL validity, testing webhook endpoints, reviewing Stripe/PayPal dashboard for declined transaction reasons.
Cart Not Updating
Adding to cart does nothing, cart quantities do not change, or cart empties unexpectedly.
Caching plugin interfering with cart sessions, corrupted wc_sessions table, JavaScript AJAX failures, or theme overriding cart templates.
Excluding cart/checkout from cache, cleaning wc_sessions table, checking admin-ajax.php functionality, testing with caching disabled.
Orders Stuck in Processing
Orders stuck in "pending" or "processing" status, confirmation emails not sending.
Action Scheduler failures, webhook delivery issues, email SMTP misconfiguration, or payment gateway not confirming transactions.
Running Action Scheduler queues manually, checking webhook logs, testing email delivery, verifying payment gateway callback URLs.
Mobile Checkout Broken
Checkout works on desktop but fails on mobile devices, especially iOS Safari.
Touch event conflicts, mobile-specific JavaScript errors, viewport/CSS issues blocking input fields, or payment gateway mobile incompatibility.
Testing on actual mobile devices, checking mobile console errors, disabling problematic mobile scripts, testing alternative payment button placement.
Cron Jobs Not Running
Scheduled tasks failing, subscription renewals not processing, stock not updating, emails delayed.
WordPress cron disabled by host, high traffic causing cron locks, Action Scheduler queue failures, or server blocking wp-cron.php.
Setting up server-level cron job, increasing WP_CRON_INTERVAL, clearing stuck Action Scheduler tasks, checking server error logs.
Database Corruption
Slow queries, admin timeouts, orders not saving, products not updating.
wp_options autoload bloat, corrupted WooCommerce tables, oversized wc_sessions, accumulated transients, or incomplete plugin uninstallation.
Cleaning wp_options autoload, truncating wc_sessions, removing expired transients, repairing WooCommerce tables, optimising database structure.
Related WooCommerce Support
For broader WooCommerce challenges beyond troubleshooting, I offer specialised services: WooCommerce speed optimisation for performance improvements, WooCommerce checkout optimisation for conversion-focused fixes, WooCommerce performance for comprehensive audits, and WooCommerce development for custom functionality. For stores broken after updates, see website fixes.
WooCommerce Troubleshooting Workflow
Effective debugging requires systematic investigation across multiple layers. Issues can originate from PHP, JavaScript, database, hosting, or third-party services.
Layer 1: Frontend Diagnosis
- Browser console for JavaScript errors and failed AJAX requests
- Network tab for failed API calls and payment gateway requests
- Testing on multiple devices and browsers, especially iOS Safari
- Checking for theme-related CSS/JavaScript conflicts
- Disabling caching to test cart fragment and session behaviour
Layer 2: Backend Diagnosis
- Query Monitor for PHP errors, slow queries, and plugin overhead
- WooCommerce status logs for checkout and payment errors
- PHP error logs for fatal errors and memory exhaustion
- Stripe/PayPal debug logs for payment gateway failures
- Action Scheduler for stuck queues and failed background tasks
Layer 3: Database Diagnosis
- wp_options autoload size analysis for bloat detection
- wc_sessions table inspection for corruption or excessive size
- Transient cleanup and expiration verification
- WooCommerce table integrity checks and repair
- Query execution analysis for slow product/order queries
Layer 4: Hosting & Server
- PHP memory limits and execution timeout configuration
- PHP worker count for handling concurrent checkout requests
- SSL certificate validity for payment gateway connections
- Firewall rules blocking webhook or API callbacks
- Object caching availability and Redis/Memcached configuration
Why WooCommerce Stores Break
Common failure patterns from working on production WooCommerce stores. Understanding these helps prioritise fixes and prevent recurrence.
Plugin Overload
Stores accumulate 30+ plugins over time. Each adds PHP execution overhead, database queries, and JavaScript assets. Conflicts become inevitable when plugins modify the same WooCommerce hooks or share outdated dependencies.
Fix: Audit plugins for necessity, replace overlapping functionality, consolidate into custom code. For stores needing stable custom functionality, see WooCommerce development.
Update Breaking Changes
WooCommerce core updates introduce breaking changes before plugin authors update their extensions. Automatic updates without staging testing multiply this risk significantly.
Fix: Update on staging first, wait 1-2 weeks after major releases, update in order - core, payment gateways, then extensions. For stores broken by failed updates, see website fixes.
Cache Misconfiguration
Caching plugins that do not properly exclude cart/checkout pages cause session corruption and checkout failures. Object caching without WooCommerce awareness breaks dynamic data.
Fix: Configure cache exclusions for cart/checkout/my-account, use WooCommerce-aware object caching. For stores with recurring cache-related failures, see WooCommerce speed optimisation.
Database Bloat
wp_options autoload grows unchecked as plugins store data without cleanup. wc_sessions accumulates abandoned carts. Transients expire but are not removed. Database bloat slows every query.
Fix: Regular wp_options cleanup, scheduled transient removal, wc_sessions truncation.
Hosting Resource Limits
Shared hosting with 2-4 PHP workers cannot handle WooCommerce checkout concurrency. Low memory limits cause fatal errors during complex operations. Slow disk I/O creates database bottlenecks.
Fix: Migrate to WooCommerce-optimised hosting with adequate PHP workers and SSD storage. For stores with recurring performance problems, see WooCommerce performance.
External Service Failures
Payment gateway API changes, shipping API deprecations, and external service outages break store functionality without any code changes. Webhooks fail silently.
Fix: Monitor webhook delivery, maintain alternative payment methods, set up uptime monitoring.
Diagnostic tools used
WooCommerce troubleshooting requires diagnostic tools across frontend, backend, database, and server layers. Using the right tools identifies root causes faster than trial and error plugin disabling.
Diagnostic Tools
WooCommerce Core
Payment Systems
Database
Caching & Performance
Hosting & Server
How troubleshooting works
Systematic WooCommerce debugging process. Each layer is investigated before moving to the next, ensuring the actual root cause is found. Fixes are tested on staging when available, with rollback capability for live emergency work.
Emergency Assessment
Describing the issue with screenshots, error messages, and recent changes. For urgent problems, providing immediate temporary workarounds where possible.
Diagnostic Investigation
Systematic debugging using Query Monitor, WooCommerce logs, browser console, and server error logs. Identifying root cause rather than symptoms.
Staging-First Fixes
Testing fixes on staging environment when available. For live emergencies, implementing careful fixes with rollback plan. Documenting all changes.
Validation & Prevention
Confirming fix resolves the issue completely. Implementing measures to prevent recurrence - cache exclusions, plugin replacements, or configuration hardening.
Frequently asked questions
Common questions about WooCommerce troubleshooting. If you have a specific issue not covered here, contact me with details about error messages and what changed before the problem started.
WooCommerce updates introduce breaking changes that conflict with existing plugins, themes, or custom code. Plugin authors may not update quickly enough for compatibility. I recommend updating on staging first, backing up before updates, and updating in order - WooCommerce core first, then payment gateways, then other extensions.
Checkout failures usually stem from JavaScript conflicts between plugins, corrupted WooCommerce sessions, payment gateway API changes, or caching plugins interfering with cart/checkout pages. I diagnose using browser console for JavaScript errors, WooCommerce logs for backend issues, and systematic plugin conflict testing.
Random order failures typically indicate payment gateway webhook issues, Action Scheduler backlogs preventing order completion, server resource limits causing timeouts during checkout, or database connection problems. Checking payment gateway logs and Action Scheduler pending tasks reveals the pattern.
Yes - this is the most common cause of checkout issues. Plugins that modify checkout fields, add tracking scripts, or inject JavaScript can conflict with WooCommerce checkout flow. Even unrelated plugins can cause conflicts through shared dependencies or JavaScript namespace collisions. Conflict testing identifies the culprit.
Mobile-specific failures often involve touch event conflicts, viewport/CSS issues blocking form inputs on iOS Safari, payment gateway mobile SDK problems, or caching differences between device types. Testing on actual mobile devices and checking mobile browser console reveals device-specific errors.
I use a systematic approach: enabling WP_DEBUG for PHP errors, checking WooCommerce status logs, reviewing browser console for JavaScript errors, using Query Monitor to identify slow queries and plugin overhead, examining Stripe/PayPal debug logs, and checking server error logs. This multi-layer approach catches issues at every level.
Yes. For stores that are completely broken or losing sales due to checkout failures, I prioritise emergency fixes. Contact me describing the issue and business impact. I can often provide temporary workarounds while implementing permanent fixes.