Failed to CreateArtifact: Received non-retryable error: Failed request: (409) Conflict: an artifact with this name already exists on the workflow run

Failed to CreateArtifact: Received non-retryable error: Failed request: (409) Conflict: an artifact with this name already exists on the workflow run

1) [chromium] › widgets/editing-widgets.spec.js:44:2 › Widgets screen › Should insert content using the global inserter { code: 'internal_server_error', message: '<p>There has been a critical error on this website.</p><p><a href="https://wordpress.org/documentation/article/faq-troubleshooting/">Learn more about troubleshooting WordPress.</a></p>', data: { status: 500, error: { type: 1, message: "Uncaught Error: Failed opening required '/var/www/html/wp-content/themes/twentytwenty/classes/class-twenty-twenty-one-svg-icons.php' (include_path='.:/usr/local/lib/php') in /var/www/html/wp-content/themes/gutenberg-test-themes/twentytwentyone/functions.php:529\n" + 'Stack trace:\n' + '#0 /var/www/html/wp-settings.php(745): include()\n' + "#1 /var/www/html/wp-config.php(142): require_once('/var/www/html/w...')\n" + "#2 /var/www/html/wp-load.php(50): require_once('/var/www/html/w...')\n" + "#3 /var/www/html/wp-blog-header.php(13): require_once('/var/www/html/w...')\n" + "#4 /var/www/html/index.php(17): require('/var/www/html/w...')\n" + '#5 {main}\n' + ' thrown', file: '/var/www/html/wp-content/themes/gutenberg-test-themes/twentytwentyone/functions.php', line: 529 } }, additional_errors: [] }

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/setup-node@64ed1c7eab4cce3362f8c340dee64e5eaeef8f7c, actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.