Warning: Constant DISALLOW_FILE_EDIT already defined in /customers/f/d/9/it-lab-berlin.de/httpd.www/wp-config.php on line 100

Fatal error: Uncaught Error: Call to undefined function create_function() in /customers/f/d/9/it-lab-berlin.de/httpd.www/wp-content/themes/it-lab/framework/widgets/widget-recent-posts.php:117
Stack trace:
#0 /customers/f/d/9/it-lab-berlin.de/httpd.www/wp-content/themes/it-lab/functions.php(57): include()
#1 /customers/f/d/9/it-lab-berlin.de/httpd.www/wp-settings.php(508): include('/customers/f/d/...')
#2 /customers/f/d/9/it-lab-berlin.de/httpd.www/wp-config.php(109): require_once('/customers/f/d/...')
#3 /customers/f/d/9/it-lab-berlin.de/httpd.www/wp-load.php(37): require_once('/customers/f/d/...')
#4 /customers/f/d/9/it-lab-berlin.de/httpd.www/wp-blog-header.php(13): require_once('/customers/f/d/...')
#5 /customers/f/d/9/it-lab-berlin.de/httpd.www/index.php(17): require('/customers/f/d/...')
#6 {main}
  thrown in /customers/f/d/9/it-lab-berlin.de/httpd.www/wp-content/themes/it-lab/framework/widgets/widget-recent-posts.php on line 117