Warning: require_once(/data/web/virtuals/327520/virtual/www/wp-admin/includes/class-wp-upgrader-skin.php): Failed to open stream: No such file or directory in /data/web/virtuals/327520/virtual/www/wp-content/plugins/wpforms-lite/src/Helpers/PluginSilentUpgraderSkin.php on line 10

Fatal error: Uncaught Error: Failed opening required '/data/web/virtuals/327520/virtual/www/wp-admin/includes/class-wp-upgrader-skin.php' (include_path='.:/data/web/virtuals/327520/virtual') in /data/web/virtuals/327520/virtual/www/wp-content/plugins/wpforms-lite/src/Helpers/PluginSilentUpgraderSkin.php:10 Stack trace: #0 /data/web/virtuals/327520/virtual/www/wp-content/plugins/wpforms-lite/vendor/composer/ClassLoader.php(444): include() #1 /data/web/virtuals/327520/virtual/www/wp-content/plugins/wpforms-lite/vendor/composer/ClassLoader.php(322): Composer\Autoload\includeFile('/data/web/virtu...') #2 [internal function]: Composer\Autoload\ClassLoader->loadClass('WPForms\\Helpers...') #3 /data/web/virtuals/327520/virtual/www/wp-content/plugins/wpforms-lite/includes/deprecated.php(146): class_alias('WPForms\\Helpers...', 'WPForms_Install...') #4 /data/web/virtuals/327520/virtual/www/wp-content/plugins/wpforms-lite/src/WPForms.php(220): require_once('/data/web/virtu...') #5 /data/web/virtuals/327520/virtual/www/wp-content/plugins/wpforms-lite/src/WPForms.php(160): WPForms\WPForms->includes() #6 /data/web/virtuals/327520/virtual/www/wp-content/plugins/wpforms-lite/src/WPForms.php(140): WPForms\WPForms->init() #7 /data/web/virtuals/327520/virtual/www/wp-content/plugins/wpforms-lite/src/WPForms.php(579): WPForms\WPForms::instance() #8 /data/web/virtuals/327520/virtual/www/wp-content/plugins/wpforms-lite/wpforms.php(346): wpforms() #9 /data/web/virtuals/327520/virtual/www/wp-settings.php(526): include_once('/data/web/virtu...') #10 /data/web/virtuals/327520/virtual/www/wp-config.php(96): require_once('/data/web/virtu...') #11 /data/web/virtuals/327520/virtual/www/wp-load.php(50): require_once('/data/web/virtu...') #12 /data/web/virtuals/327520/virtual/www/wp-blog-header.php(13): require_once('/data/web/virtu...') #13 /data/web/virtuals/327520/virtual/www/index.php(17): require('/data/web/virtu...') #14 {main} thrown in /data/web/virtuals/327520/virtual/www/wp-content/plugins/wpforms-lite/src/Helpers/PluginSilentUpgraderSkin.php on line 10