HAProxy反向代理配置异常？多子域名反向代理配置排查求助

大家好，我正在配置自己的域名，想要把HAProxy设置成所有子域名的反向代理，但不知道哪里配置出了问题，折腾了好一阵都没搞定，完全摸不着头绪。下面是我的完整HAProxy配置文件，麻烦各位大佬帮忙看看问题到底出在哪：

global
    log /dev/log    local0
    log /dev/log    local1 notice
    chroot /var/lib/haproxy
    stats socket /run/haproxy/admin.sock mode 660 level admin
    stats timeout 30s
    user haproxy
    group haproxy
    daemon

    # Default SSL material locations
    ca-base /etc/ssl/certs
    crt-base /etc/ssl/private

    # See: https://ssl-config.mozilla.org/#server=haproxy&server-version=2.0.3&config=intermediate
    ssl-default-bind-ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POL>
    ssl-default-bind-ciphersuites TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256
    ssl-default-bind-options ssl-min-...

备注：内容来源于stack exchange，提问作者Vincent Guttmann