Hello, according to docs, it should be possible to enable delgated domain administration by checking a box during domain creation. https://docs.zextras.com/carbonio-ce/html/adminpanel/domains/newdomain.html But when I check this box, and create the domain I see this error briefly appearing on the screen:
JSON parse: unexpected character at line 1 column 1 of the JSON data
At the same time this appears in nginx.acces.log:
<client-IP> - - [19/Sep/2025:15:58:03 +0200] "GET https://carbonio.mydomain.tld/service/extension/zextras_admin/admin/initDomainForDelegation HTTP/1.1" 404 4548 "https://carbonio.mydomain.tld:6071/carbonioAdmin/manage/domains/create-new-domain" "Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.0" "carbonio.mydomain.tld:7071" "<carbonio-IP>:6071"
There is java process listening on 7071 running com.zextras.mailbox.Mailbox, listening on bunch of other ports: 7072, 7073, 7993, 7995, 7143, 7110, 7025, 8080, 8443
Also whe I go to the administration tab in user account details, I get a 404 error, regardless if the domain was created with delegated admin enabled or not, and this log appears:
<client-IP> - - [19/Sep/2025:15:47:41 +0200] "GET https://carbonio.mydomain.tld/service/extension/zextras_admin/admin/getInitializedDomains HTTP/1.1" 404 4548 "https://carbonio.mydomain.tld:6071/carbonioAdmin/manage/domains/<some-hex-id>/accounts" "Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.0" "carbonio.mydomain.tld:7071" "<carbonio-IP>:6071"
It looks to me, like I am missing some extension in zextras_admin. Where do I get it?