<br />
<b>Warning</b>:  include(/www/wwwroot/shop/wp-content/plugins/wordpress-seo-premium/vendor/composer/../../classes/upgrade-manager.php): failed to open stream: No such file or directory in <b>/www/wwwroot/shop/wp-content/plugins/one-click-demo-import/vendor/composer/ClassLoader.php</b> on line <b>444</b><br />
<br />
<b>Warning</b>:  include(): Failed opening '/www/wwwroot/shop/wp-content/plugins/wordpress-seo-premium/vendor/composer/../../classes/upgrade-manager.php' for inclusion (include_path='.:') in <b>/www/wwwroot/shop/wp-content/plugins/one-click-demo-import/vendor/composer/ClassLoader.php</b> on line <b>444</b><br />
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<b>Fatal error</b>:  Uncaught Error: Class 'WPSEO_Upgrade_Manager' not found in /www/wwwroot/shop/wp-content/plugins/wordpress-seo-premium/src/integrations/upgrade-integration.php:33
Stack trace:
#0 /www/wwwroot/shop/wp-includes/class-wp-hook.php(324): Yoast\WP\SEO\Premium\Integrations\Upgrade_Integration-&gt;run_upgrade()
#1 /www/wwwroot/shop/wp-includes/class-wp-hook.php(348): WP_Hook-&gt;apply_filters()
#2 /www/wwwroot/shop/wp-includes/plugin.php(517): WP_Hook-&gt;do_action()
#3 /www/wwwroot/shop/wp-settings.php(695): do_action()
#4 /www/wwwroot/shop/wp-config.php(103): require_once('/www/wwwroot/sh...')
#5 /www/wwwroot/shop/wp-load.php(50): require_once('/www/wwwroot/sh...')
#6 /www/wwwroot/shop/wp-blog-header.php(13): require_once('/www/wwwroot/sh...')
#7 /www/wwwroot/shop/index.php(17): require('/www/wwwroot/sh...')
#8 {main}
  thrown in <b>/www/wwwroot/shop/wp-content/plugins/wordpress-seo-premium/src/integrations/upgrade-integration.php</b> on line <b>33</b><br />