Can't run Kibana after installing on Archlinux (Failed to fetch)

I have installed Elasticsearch as stated in the resource After that I had the store "/usr/share/Elasticsearch/config/Elasticsearch.keystore" created, so I didn’t recreate it with "Elasticsearch-keystore create".
Then I started the service via start/enable Elasticsearch.service. returns

  "name" : "x230",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "-RnIshwfQUSA9ybp5PbLWg",
  "version" : {
    "number" : "7.10.2",
    "build_flavor" : "default",
    "build_type" : "tar",
    "build_hash" : "unknown",
    "build_date" : "2021-08-25T17:55:24.048595Z",
    "build_snapshot" : false,
    "lucene_version" : "8.7.0",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  "tagline" : "You Know, for Search"

I also installed Kibana according to the instructions I uncommented in "/etc/kibana/kibana.yml"

server.port: 5601 "localhost"
elasticsearch.hosts: ["http: // localhost: 9200"]

Then I started the service via start/enable kibana.service.

However, after going to http://localhost:5601/ I get "Failed to fetch" error.

Version: 7.10.2
Build: 36136
TypeError: Failed to fetch
    at Fetch._callee3$ (http://localhost:5601/36136/bundles/core/core.entry.js:6:58583)
    at l (http://localhost:5601/36136/bundles/kbn-ui-shared-deps/kbn-ui-shared-deps.js:380:982071)
    at Generator._invoke (http://localhost:5601/36136/bundles/kbn-ui-shared-deps/kbn-ui-shared-deps.js:380:981824)
    at Generator.forEach.e.<computed> [as throw] (http://localhost:5601/36136/bundles/kbn-ui-shared-deps/kbn-ui-shared-deps.js:380:982428)
    at fetch_asyncGeneratorStep (http://localhost:5601/36136/bundles/core/core.entry.js:6:52652)
    at _throw (http://localhost:5601/36136/bundles/core/core.entry.js:6:53060)

I am using jdk-17.

[user@x230 ~]$ archlinux-java status
Available Java environments:
  java-17-openjdk (default)

Perhaps someone can help me - in which direction should I look for the problem? Thanks.