Warning: Constant ABSPATH already defined in /home/.sites/656/site227/web/blog/wp-config.php on line 29

Fatal error: Uncaught Error: Call to undefined function create_function() in /home/.sites/656/site227/web/blog/wp-content/plugins/nextgen-gallery-sidebar-widget/ngg-sidebar-widget.php:27
Stack trace:
#0 /home/.sites/656/site227/web/blog/wp-settings.php(215): include_once()
#1 /home/.sites/656/site227/web/blog/wp-config.php(30): require_once('/home/.sites/65...')
#2 /home/.sites/656/site227/web/blog/wp-load.php(29): require_once('/home/.sites/65...')
#3 /home/.sites/656/site227/web/blog/wp-blog-header.php(12): require_once('/home/.sites/65...')
#4 /home/.sites/656/site227/web/index.php(4): require('/home/.sites/65...')
#5 {main}
  thrown in /home/.sites/656/site227/web/blog/wp-content/plugins/nextgen-gallery-sidebar-widget/ngg-sidebar-widget.php on line 27