关于nginx整合fastdfs时http请求无法访问，nginx正常启动类但是访问不能请求的解决方法

Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /www/wwwroot/www.bmabk.com/wp-content/themes/justnews/themer/functions/shortcodes-render.php:49 Stack trace: #0 /www/wwwroot/www.bmabk.com/wp-includes/shortcodes.php(433): wpcom_sc_alert() #1 [internal function]: do_shortcode_tag() #2 /www/wwwroot/www.bmabk.com/wp-includes/shortcodes.php(273): preg_replace_callback() #3 /www/wwwroot/www.bmabk.com/wp-includes/class-wp-hook.php(324): do_shortcode() #4 /www/wwwroot/www.bmabk.com/wp-includes/plugin.php(205): WP_Hook->apply_filters() #5 /www/wwwroot/www.bmabk.com/wp-includes/post-template.php(256): apply_filters() #6 /www/wwwroot/www.bmabk.com/wp-content/themes/justnews/single.php(74): the_content() #7 /www/wwwroot/www.bmabk.com/wp-includes/template-loader.php(106): include('...') #8 /www/wwwroot/www.bmabk.com/wp-blog-header.php(19): require_once('...') #9 /www/wwwroot/www.bmabk.com/index.php(17): require('...') #10 {main} thrown in /www/wwwroot/www.bmabk.com/wp-content/themes/justnews/themer/functions/shortcodes-render.php on line 49