🚨 URGENT: Matomo Plugin Compatibility Issue - CustomOptOut Plugin Failure

[jane-alesi]

🚨 Critical Issue: Matomo Plugin Compatibility Failure

Issue Summary

The CustomOptOut plugin on ut.literama.de Matomo instance is failing due to version compatibility issues, potentially affecting multiple client sites and GDPR compliance functionality.

Error Details

Das Plugin CustomOptOut konnte nicht geladen werden, da folgende Abhängigkeiten fehlen: 
CustomOptOut benötigt Matomo <5.0.0-b1. 
Bitte kontaktieren Sie Ihren Matomo Administrator.

Translation: "The CustomOptOut plugin could not be loaded due to missing dependencies: CustomOptOut requires Matomo <5.0.0-b1. Please contact your Matomo Administrator."

Impact Assessment

🔴 High Priority Issues:

• Cookie consent functionality may be compromised
• GDPR compliance features potentially affected
• Analytics data processing may be interrupted
• Multiple client sites potentially affected

📊 Affected Systems:

• Primary: ut.literama.de Matomo instance
• Secondary: All sites using this Matomo installation
• Specific: satware.ai analytics setup (empty dashboard issue)

Technical Analysis

Root Cause: Version incompatibility between:

• Current Matomo version (appears to be ≥5.0.0-b1)
• CustomOptOut plugin (requires <5.0.0-b1)

Symptoms:

• Plugin loading failure
• Empty analytics dashboards
• Potential archiving process interruption

Immediate Action Items

🔧 Technical Tasks:

• Verify current Matomo version on ut.literama.de
• Check CustomOptOut plugin version and compatibility
• Update plugin to compatible version or find alternative
• Test cookie consent functionality across all sites
• Verify archiving cron job functionality
• Validate GDPR compliance features

📋 Verification Tasks:

• Test satware.ai analytics data collection
• Verify other client sites using this Matomo instance
• Check plugin marketplace for updated CustomOptOut version
• Document plugin dependencies for future updates

Discovery Context

This issue was discovered during satware.ai analytics troubleshooting session with Michael Wegener. While investigating empty dashboard despite working tracking code, this plugin compatibility error was found in the Matomo admin interface.

Priority Justification

• Business Impact: Potential GDPR compliance issues
• Client Impact: Multiple sites may be affected
• Data Impact: Analytics data collection/processing compromised
• Legal Impact: Cookie consent functionality critical for EU operations

Assignment

• Primary: @tfw (Tim Friedrich Weber) - Infrastructure & Plugin Management
• Secondary: @ja (Jane Alesi) - Analytics & Monitoring

Next Steps

1. Immediate: Check ut.literama.de server access and Matomo admin
2. Short-term: Resolve plugin compatibility and test functionality
3. Long-term: Implement plugin update monitoring to prevent future issues

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Discovered by: Jane Alesi (ja@satware.ai)
Reported: 2025-06-16
Priority: HIGH
Type: Bug, Infrastructure, GDPR Compliance