Zabbix Docker based scheduled report issue

[ahmadqwe]

i have below container:

 docker ps
CONTAINER ID   IMAGE                                             COMMAND                  CREATED        STATUS                 PORTS                                                                                            NAMES
0930fa5f6de4   zabbix/zabbix-web-service:latest                  "docker-entrypoint.s…"   2 hours ago    Up 2 hours             0.0.0.0:10053->10053/tcp, :::10053->10053/tcp                                                    zabbix-web-service
c952bcf6034d   zabbix/zabbix-server-mysql:alpine-7.2-latest      "/usr/bin/docker-ent…"   13 hours ago   Up 11 minutes          0.0.0.0:10051->10051/tcp, :::10051->10051/tcp                                                    zabbix-server-mysql
5c8d2a702595   mysql:8.0-oracle                                  "docker-entrypoint.s…"   4 days ago     Up 4 days              3306/tcp, 33060/tcp                                                                              mysql-server
136cda4e9c3e   zabbix/zabbix-web-nginx-mysql:alpine-7.2-latest   "docker-entrypoint.sh"   2 weeks ago    Up 3 hours (healthy)   8443/tcp, 0.0.0.0:80->8080/tcp, :::80->8080/tcp                                                  zabbix-web-nginx-mysql

and i am keep getting Scheduled reports Test report generating

Details
Report generating test failed.
Report manager is disabled.

i believe all required done:

/var/lib/zabbix # cat /etc/zabbix/zabbix_server_reports.conf
### Option: StartReportWriters
#       Number of pre-forked report writer instances.
#
# Mandatory: no
# Range: 0-100
# Default:
#StartReportWriters=1

StartReportWriters=3

### Option: WebServiceURL
#       URL to Zabbix web service, used to perform web related tasks.
#       Example: http://localhost:10053/report
#
# Mandatory: no
# Default:
# WebServiceURL=
WebServiceURL=http://171.20.240.4:10053/report

#WebServiceURL=${ZBX_WEBSERVICEURL}

/var/lib/zabbix # curl http://171.20.240.4:10053/report
{"detail":"Method is not supported."}

is there any idea to go further?

[dotneft]

Why you have "StartReportWriters=3 and WebServiceURL=http://171.20.240.4:10053/report" static, while need to specify env variable?