Unable to do TLS handshake to NGINX server

After setting up a nginx server, I tried to access via https by curl or openssl s_client but it fail. I can only use curl with http://...

When I use openssl s_client -connect www.SEexample.com:443 -showcertsThe error shows

40570C4DB47F0000:error:0A000126:SSL routines:ssl3_read_n:unexpected eof while reading:../ssl/record/rec_layer_s3.c:308:---no peer certificate available---No client certificate CA names sent---SSL handshake has read 0 bytes and written 326 bytesVerification: OK

Here is the /etc/nginx/nginx.conf

user  nginx;worker_processes  1;error_log  /var/log/nginx/error.log debug;pid        /var/run/nginx.pid;events {    worker_connections  1024;}ssl_engine pkcs11;http {    include       /etc/nginx/mime.types;    default_type  application/octet-stream;    server {    listen 80;    listen 443 ssl;    include snippets/ssl-params.conf;    server_name www.SEexample.com SEexample.com;        ssl_certificate /etc/ssl/certs/SEcombine2.crt;        ssl_certificate_key /etc/ssl/certs/www.SEexample.com.key2.pem;        root /var/www/html;        index index.html;    ssl_trusted_certificate /etc/ssl/certs/SEcombine2.crt;    }    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" ''$status $body_bytes_sent "$http_referer" ''"$http_user_agent" "$http_x_forwarded_for"';    access_log  /var/log/nginx/access.log  main;    sendfile        on;    #tcp_nopush     on;    keepalive_timeout  65;    #gzip  on;    include /etc/nginx/conf.d/*.conf;}

Noted that I already verify the certificate key and certificate.Please give me an useful leads.