Fatal error: Uncaught Error: [] operator not supported for strings in /home/xianease/www/www/forum/wp-content/plugins/bbpress/includes/forums/functions.php:1800
Stack trace:
#0 /home/xianease/www/www/forum/wp-includes/plugin.php(601): bbp_pre_get_posts_normalize_forum_visibility(Object(WP_Query))
#1 /home/xianease/www/www/forum/wp-includes/query.php(2514): do_action_ref_array('pre_get_posts', Array)
#2 /home/xianease/www/www/forum/wp-includes/query.php(4014): WP_Query->get_posts()
#3 /home/xianease/www/www/forum/wp-includes/class-wp.php(582): WP_Query->query(Array)
#4 /home/xianease/www/www/forum/wp-includes/class-wp.php(683): WP->query_posts()
#5 /home/xianease/www/www/forum/wp-includes/functions.php(952): WP->main('')
#6 /home/xianease/www/www/forum/wp-blog-header.php(14): wp()
#7 /home/xianease/www/www/forum/index.php(17): require('/home/xianease/...')
#8 {main}
thrown in /home/xianease/www/www/forum/wp-content/plugins/bbpress/includes/forums/functions.php on line 1800