Running service not running !?

How is this possible? Would someone have an idea?

username@server01:~/erpnext1/apps_custom$ docker compose ps
NAME IMAGE COMMAND SERVICE CREATED STATUS PORTS
erpnext1-backend-1 frappe/erpnext:v15.60.0 “/home/frappe/frappe…” backend 24 minutes ago Up 23 minutes
erpnext1-db-1 mariadb:10.11 “docker-entrypoint.s…” db 24 minutes ago Up 24 minutes (healthy) 3306/tcp
erpnext1-frontend-1 frappe/erpnext:v15.60.0 “nginx-entrypoint.sh” frontend 24 minutes ago Up 23 minutes 0.0.0.0:8444->443/tcp, [::]:8444->443/tcp, 0.0.0.0:8083->8080/tcp, [::]:8083->8080/tcp
erpnext1-queue-long-1 frappe/erpnext:v15.60.0 “bench worker --queu…” queue-long 24 minutes ago Up 23 minutes
erpnext1-queue-short-1 frappe/erpnext:v15.60.0 “bench worker --queu…” queue-short 24 minutes ago Up 23 minutes
erpnext1-redis-cache-1 redis:latest “docker-entrypoint.s…” redis-cache 24 minutes ago Up 24 minutes 6379/tcp
erpnext1-redis-queue-1 redis:latest “docker-entrypoint.s…” redis-queue 24 minutes ago Up 24 minutes 6379/tcp
erpnext1-scheduler-1 frappe/erpnext:v15.60.0 “bench --site erp.co…” scheduler 24 minutes ago Up 23 minutes
erpnext1-websocket-1 frappe/erpnext:v15.60.0 “node /home/frappe/f…” websocket 24 minutes ago Up 23 minutes 0.0.0.0:9000->9000/tcp, [::]:9000->9000/tcp
username@server01:~/erpnext1/apps_custom$ docker compose exec erpnext1-backend-1 bash
service “erpnext1-backend-1” is not running