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Troubleshooting Common Issues After Updating The Events Calendar

40 threads Sep 16, 2025 Plugin → The events calendar

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Updating The Events Calendar plugin is essential for security and access to new features, but it can sometimes introduce unexpected issues. Based on community reports, this guide covers the most common problems users face after an update and provides step-by-step solutions to get your calendar back on track.

Common Post-Update Issues and Their Symptoms

Users frequently report the following problems after updating The Events Calendar:

  • Front-end functionality breaks: Month, day, and search links stop working (Thread 1).
  • Admin area problems: The Events menu generates a critical error or a blank white screen (Thread 12).
  • Block Editor errors: Event blocks show "This block has encountered an error and cannot be previewed" when editing (Threads 10, 19).
  • Missing styling or assets: The calendar or settings pages appear unstyled, often with 404 errors for CSS/JS files (Threads 11, 18).
  • Add-on incompatibility: Companion plugins, like Category Colors, stop recognizing the main plugin (Thread 16).
  • Data migration hurdles: The upgrade tab is missing, preventing migration from legacy versions (V5 to V6) (Thread 15).

Step-by-Step Troubleshooting Guide

Before proceeding, always back up your website and perform these tests on a staging site first if possible.

1. Test for Conflicts (The Most Common Fix)

A vast majority of issues are caused by conflicts with other themes or plugins.

  1. Switch to a default theme: Temporarily activate a standard WordPress theme like Twenty Twenty-Five. If the issue resolves, the problem lies with your theme.
  2. Deactivate all other plugins: Disable every plugin except The Events Calendar. If the issue is fixed, reactivate your plugins one-by-one to identify the culprit.

2. Check for a Specific SCRIPT_DEBUG Setting

If you are seeing broken blocks in the WordPress editor after updating to WordPress 6.7 or later, a specific configuration might be the cause (Threads 10, 19).

  1. Access your site's files via FTP or your hosting file manager.
  2. Locate and open the wp-config.php file in your root directory.
  3. Look for this line: define( 'SCRIPT_DEBUG', true );
  4. If it exists, change true to false or comment it out by adding two forward slashes: // define( 'SCRIPT_DEBUG', true );
  5. Save the file and clear your site's cache. This often resolves the block editor errors immediately.

3. Regenerate Permalinks and Check Assets

For issues with 404 errors, broken links, or missing styles, resetting your permalinks can flush the rewrite rules and fix the problem.

  1. Go to Settings > Permalinks in your WordPress admin.
  2. Without changing any settings, simply click the "Save Changes" button.

4. Complete the Data Migration (For V5 Holders)

If you are stuck on version 5.x and cannot see the "Upgrade" tab, you are not alone. The migration process can be fragile. The 'The Events Calendar' team's code updates are increasingly focused on migrated sites, so completing this is crucial (Thread 8, 15).

  • Ensure you are running a recent version of PHP (7.4 or higher).
  • Follow the official Tips for a smooth migration guide carefully.
  • If the process fails or the tab is missing, the most reliable course of action may be to perform the migration on a fresh staging site and then import the data.

5. Enable Debugging to Find Hidden Errors

For critical errors or blank white screens, enabling debugging will reveal the underlying PHP error that is causing the crash (Threads 5, 13).

  1. Edit your wp-config.php file again.
  2. Find the line define( 'WP_DEBUG', false );.
  3. Change it to: 
    define( 'WP_DEBUG', true );
define( 'WP_DEBUG_LOG', true );
define( 'WP_DEBUG_DISPLAY', false );
  4. Save the file and reproduce the error. This will create a debug.log file in your /wp-content/ directory containing the specific error details, which are vital for finding a solution.

When to Seek Further Help

If these steps do not resolve your issue, the community can help. When asking for help, be sure to include:

  • The exact versions of WordPress, PHP, and The Events Calendar.
  • The name of your theme and hosting provider.
  • The exact steps to reproduce the issue.
  • Any error messages from your browser's console (F12 tools) or the debug.log file.

Most issues can be resolved through systematic conflict testing and configuration checks. By following this guide, you can diagnose and fix the most common problems that arise after updating The Events Calendar plugin.

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