Laradocker Nginx 配置问题：如何解决访问网站后台出现空白页面的问题？

location ~ .php$ {    # try_files $uri /index.php =404;    fastcgi_pass php-upstream;    fastcgi_index index.php;    fastcgi_buffers 16 16k;    fastcgi_buffer_size 32k;    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;    #fixes timeouts    fastcgi_read_timeout 600;    include fastcgi_params;}location /admin.php {    fastcgi_pass php-upstream;    fastcgi_param SCRIPT_FILENAME /var/www/your_directionary/admin.php;        fastcgi_param PATH_INFO $fastcgi_path_info;        fastcgi_split_path_info ^(.+.php)(.*)$;        fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;        include fastcgi_params;}