Fatal error: Uncaught Error: Call to undefined function DiviBooster\DiviBooster\Modules\Accordion\is_plugin_active() in /var/www/project/wp-content/plugins/divi-booster/core/modules/accordion/accordion.php:9 Stack trace: #0 /var/www/project/wp-content/plugins/divi-booster/core/modules/modules.php(7): include_once() #1 /var/www/project/wp-content/plugins/divi-booster/core/index.php(39): include('/var/www/projec...') #2 /var/www/project/wp-content/plugins/divi-booster/divi-booster.php(92): include_once('/var/www/projec...') #3 /var/www/project/wp-settings.php(517): include_once('/var/www/projec...') #4 /var/www/project/wp-config.php(116): require_once('/var/www/projec...') #5 /var/www/project/wp-load.php(50): require_once('/var/www/projec...') #6 /var/www/project/wp-blog-header.php(13): require_once('/var/www/projec...') #7 /var/www/project/index.php(17): require('/var/www/projec...') #8 {main} thrown in /var/www/project/wp-content/plugins/divi-booster/core/modules/accordion/accordion.php on line 9