HAProxy active by not working

I have installed HAProxy on DigitalOcean droplet Ubuntu 20.04, HAProxy version 2.5
It is active but not working
systemctl status haproxy
● haproxy.service - HAProxy Load Balancer
Loaded: loaded (/lib/systemd/system/haproxy.service; enabled; vendor preset: enabled)
Active: active (running) since Sun 2022-04-17 10:27:57 UTC; 24min ago
Docs: man:haproxy(1)
file:/usr/share/doc/haproxy/configuration.txt.gz
Main PID: 24536 (haproxy)
Tasks: 2 (limit: 1132)
Memory: 72.2M
CGroup: /system.slice/haproxy.service
├─24536 /usr/sbin/haproxy -x /run/haproxy/admin.sock -Ws -f /etc/haproxy/haproxy.cfg -p /run/haproxy.pid -S /run/haproxy-master.sock
└─24548 /usr/sbin/haproxy -Ws -f /etc/haproxy/haproxy.cfg -p /run/haproxy.pid -S /run/haproxy-master.sock

Apr 17 10:51:34 dns haproxy[24548]: 121.45.115.236:60638 [17/Apr/2022:10:51:34.248] stats stats/ 0/0/0/0/0 200 43743 - - LR-- 1/1/0/0/0 0/0 "GET /monit>
Apr 17 10:51:39 dns haproxy[24548]: 121.45.115.236:60638 [17/Apr/2022:10:51:39.789] stats stats/ 0/0/0/0/0 200 43742 - - LR-- 1/1/0/0/0 0/0 "GET /monit>
Apr 17 10:51:45 dns haproxy[24548]: 121.45.115.236:60638 [17/Apr/2022:10:51:45.304] stats stats/ 0/0/0/0/0 200 43742 - - LR-- 1/1/0/0/0 0/0 "GET /monit>
Apr 17 10:51:50 dns haproxy[24548]: 121.45.115.236:60638 [17/Apr/2022:10:51:50.886] stats stats/ 0/0/0/0/0 200 43743 - - LR-- 1/1/0/0/0 0/0 "GET /monit>
Apr 17 10:51:56 dns haproxy[24548]: 121.45.115.236:60638 [17/Apr/2022:10:51:56.514] stats stats/ 0/0/0/0/0 200 43704 - - LR-- 1/1/0/0/0 0/0 "GET /monit>
Apr 17 10:52:02 dns haproxy[24548]: 121.45.115.236:60638 [17/Apr/2022:10:52:02.104] stats stats/ 0/0/0/0/0 200 43730 - - LR-- 1/1/0/0/0 0/0 "GET /monit>
Apr 17 10:52:07 dns haproxy[24548]: 121.45.115.236:60638 [17/Apr/2022:10:52:07.715] stats stats/ 0/0/0/0/0 200 43743 - - LR-- 1/1/0/0/0 0/0 "GET /monit>
Apr 17 10:52:13 dns haproxy[24548]: 121.45.115.236:60638 [17/Apr/2022:10:52:13.222] stats stats/ 0/0/0/0/0 200 43742 - - LR-- 1/1/0/0/0 0/0 "GET /monit>
Apr 17 10:52:18 dns haproxy[24548]: 121.45.115.236:60638 [17/Apr/2022:10:52:18.830] stats stats/ 0/0/0/0/0 200 43742 - - LR-- 1/1/0/0/0 0/0 "GET /monit>
Apr 17 10:52:24 dns haproxy[24548]: 121.45.115.236:60638 [17/Apr/2022:10:52:24.385] stats stats/ 0/0/0/0/0 200 43742 - - LR-- 1/1/0/0/0 0/0 "GET /monit

haproxy -c -f /etc/haproxy/haproxy.cfg
Configuration file is valid

sudo tail -n 2 /var/log/haproxy.log
Apr 17 10:49:03 dns haproxy[24548]: 121.45.115.236:60638 [17/Apr/2022:10:49:03.768] stats stats/ 0/0/0/0/0 200 43730 - - LR-- 1/1/0/0/0 0/0 “GET /monitor HTTP/1.1”
Apr 17 10:49:09 dns haproxy[24548]: 121.45.115.236:60638 [17/Apr/2022:10:49:09.287] stats stats/ 0/0/0/0/0 200 43742 - - LR-- 1/1/0/0/0 0/0 “GET /monitor HTTP/1.1”

Please help, Thanks all