FAQs

Getting “PCLZIP_ERR_BAD_FORMAT (-10): Unable to find End of Central Dir Record signature” error when updating WPDM Pro. How do I fix this?

1 min read Updated Jan 26, 2026

The “PCLZIP_ERR_BAD_FORMAT (-10): Unable to find End of Central Dir Record signature” error occurs when updating WPDM Pro due to expired access tokens. You can manage your licenses and downloads through your 🔗 WPDM User Dashboard. Here’s how to fix it:

Primary Fix Method

  1. Go to Downloads > Settings > License in your WordPress admin
  2. Click Save Settings again (this regenerates the access token)
  3. Try updating the plugin from the Plugins page again

Alternative Method

If the primary method doesn’t work, try a fresh installation:

  1. Deactivate and delete the current WPDM Pro version (your data won’t be lost)
  2. Install the fresh version and activate your license key

If License Issues Persist

For ongoing license-related problems:

  • Login to your WPDM dashboard and unlink the site from your license
  • Re-activate the license in WordPress admin

Understanding the Error

Note: This error is typically caused by expired access tokens. Refreshing the license settings usually resolves the issue by generating a fresh download link with proper authentication.

💡 Pro Tip: Always ensure your license is active and properly linked to your domain before attempting plugin updates.
Related Link: 🔗 WPDM User Dashboard