Warning: include(/home/plusshee/domains/plussheed.ir/public_html/wp-content/plugins/flexible-checkout-fields/vendor/composer/../../src/Integration/Integrator.php): failed to open stream: No such file or directory in /home/plusshee/domains/plussheed.ir/public_html/wp-content/plugins/flexible-checkout-fields/vendor/composer/ClassLoader.php on line 582 Warning: include(): Failed opening '/home/plusshee/domains/plussheed.ir/public_html/wp-content/plugins/flexible-checkout-fields/vendor/composer/../../src/Integration/Integrator.php' for inclusion (include_path='.:/usr/local/php-7.4/lib/php') in /home/plusshee/domains/plussheed.ir/public_html/wp-content/plugins/flexible-checkout-fields/vendor/composer/ClassLoader.php on line 582 Fatal error: Uncaught Error: Class 'WPDesk\FCF\Free\Integration\Integrator' not found in /home/plusshee/domains/plussheed.ir/public_html/wp-content/plugins/flexible-checkout-fields/src/Integration/IntegratorIntegration.php:50 Stack trace: #0 /home/plusshee/domains/plussheed.ir/public_html/wp-includes/class-wp-hook.php(324): WPDesk\FCF\Free\Integration\IntegratorIntegration->set_hook_for_integration('') #1 /home/plusshee/domains/plussheed.ir/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #2 /home/plusshee/domains/plussheed.ir/public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #3 /home/plusshee/domains/plussheed.ir/public_html/wp-settings.php(704): do_action('init') #4 /home/plusshee/domains/plussheed.ir/public_html/wp-config.php(89): require_once('/home/plusshee/...') #5 /home/plusshee/domains/plussheed.ir/public_html/wp-load.php(50): require_once('/home/plusshee/...') #6 /home/plusshee/domains/plussheed.ir/public_html/wp-blog-header.php(13): require_once('/home/plusshee in /home/plusshee/domains/plussheed.ir/public_html/wp-content/plugins/flexible-checkout-fields/src/Integration/IntegratorIntegration.php on line 50