Fatal error: Uncaught Error: Call to undefined function is_plugin_active() in /container/application/public/assets/themes/plantdoctor/modules/notification/functions.php:147 Stack trace: #0 /container/application/public/assets/themes/plantdoctor/modules/functions.php(7): include() #1 /container/application/public/assets/themes/plantdoctor/functions.php(439): include('/container/appl...') #2 /container/application/public/wp-settings.php(426): include('/container/appl...') #3 /container/application/public/wp-config.php(135): require_once('/container/appl...') #4 /container/application/public/wp-load.php(37): require_once('/container/appl...') #5 /container/application/public/wp-blog-header.php(13): require_once('/container/appl...') #6 /container/application/public/index.php(17): require('/container/appl...') #7 {main} thrown in /container/application/public/assets/themes/plantdoctor/modules/notification/functions.php on line 147