Fatal error: Uncaught TypeError: extract(): Argument #1 ($array) must be of type array, null given in /home/wptest/domains/wptest.camelia.lt/public_html/wp-content/plugins/tutor/views/fragments/thumbnail-uploader.php:13 Stack trace: #0 /home/wptest/domains/wptest.camelia.lt/public_html/wp-content/plugins/tutor/views/fragments/thumbnail-uploader.php(13): extract() #1 {main} thrown in /home/wptest/domains/wptest.camelia.lt/public_html/wp-content/plugins/tutor/views/fragments/thumbnail-uploader.php on line 13