【Fess】Fessの http://localhost:8080/ にアクセスできない(libinput error)

Question

困っていること

以下のサイトに従って、CentOS8にElasticsearchとFessをrpmでインストールしました。
https://fess.codelibs.org/ja/13.8/install/install.html#rpm-deb

Elasticsearch は起動でき、statusも問題ありません。
しかし、
Fess はstart(起動)でエラーは発生していないが、statusでFailedとなっていて、
CentOS8のFirefoxで「localhost:8080」のアクセスにも失敗しました。

journalctl -xe　で「libinput error」と出ましたが、解決する方法が分かりません

ご教授のほどよろしくお願いいたします。

Elasticsearchの動作状況

下記の通り、良好です

[root@centos Elastic_PJ]# systemctl status elasticsearch.service
● elasticsearch.service - Elasticsearch
    Loaded: loaded (/usr/lib/systemd/system/elasticsearch.service;
enabled; vendor preset: disabled)
    Active: active (running) since Fri 2021-01-29 17:15:02 JST; 1min 5s ago
      Docs: https://www.elastic.co
  Main PID: 6496 (java)
     Tasks: 52 (limit: 23543)
    Memory: 1.3G
    CGroup: /system.slice/elasticsearch.service
            ├─6496 /usr/share/elasticsearch/jdk/bin/java -Xshare:auto
-Des.networkaddress.cache.ttl=60 -Des.networkaddress.cache.negat>
            └─6651
/usr/share/elasticsearch/modules/x-pack-ml/platform/linux-x86_64/bin/controller

  1月 29 17:14:29 centos systemd[1]: Starting Elasticsearch...
  1月 29 17:15:02 centos systemd[1]: Started Elasticsearch.

Fessの動作状況

startではエラーはでなかったが、statusを見ると動作が失敗しているため
「journalctl -xe」で状況を確認してみた

[root@centos Elastic_PJ]# systemctl start fess.service

[root@centos Elastic_PJ]# systemctl status fess.service
● fess.service - Fess
    Loaded: loaded (/usr/lib/systemd/system/fess.service; enabled;vendor preset: disabled)
    Active: failed (Result: exit-code) since Fri 2021-01-29 17:16:32JST; 7s ago
      Docs: http://fess.codelibs.org/
   Process: 6755 ExecStart=/usr/share/fess/bin/fess (code=exited,status=1/FAILURE)
  Main PID: 6755 (code=exited, status=1/FAILURE)

  1月 29 17:16:32 centos fess[6755]:         at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
  1月 29 17:16:32 centos fess[6755]:         at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
  1月 29 17:16:32 centos fess[6755]:         at java.security.AccessController.doPrivileged(Native Method)
  1月 29 17:16:32 centos fess[6755]:         at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
  1月 29 17:16:32 centos fess[6755]:         at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
  1月 29 17:16:32 centos fess[6755]:         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
  1月 29 17:16:32 centos fess[6755]:         at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
  1月 29 17:16:32 centos fess[6755]:         at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:601)
  1月 29 17:16:32 centos systemd[1]: fess.service: Main process exited, code=exited, status=1/FAILURE
  1月 29 17:16:32 centos systemd[1]: fess.service: Failed with result'exit-code'.

「journalctl -xe」の中身

「libinput error」でエラーが出ているようだが、改善方法が分かりません

[root@centos bin]# journalctl -xe

  1月 29 17:20:21 centos org.gnome.Shell.desktop[2544]: libinput error: client bug: timer event3 debounce short: offset negative (-6ms)
  1月 29 17:20:27 centos org.gnome.Shell.desktop[2544]: libinput error: client bug: timer event3 debounce: offset negative (-7ms)
  1月 29 17:20:27 centos org.gnome.Shell.desktop[2544]: libinput error: client bug: timer event3 debounce short: offset negative (-20ms)
  1月 29 17:20:29 centos org.gnome.Shell.desktop[2544]: libinput error: client bug: timer event3 debounce: offset negative (-19ms)
  1月 29 17:20:29 centos org.gnome.Shell.desktop[2544]: libinput error: client bug: timer event3 debounce short: offset negative (-32ms)
  1月 29 17:20:31 centos org.gnome.Shell.desktop[2544]: libinput error: client bug: timer event3 debounce short: offset negative (-11ms)
  1月 29 17:20:31 centos org.gnome.Shell.desktop[2544]: libinput error: client bug: timer event3 debounce: offset negative (-24ms)
  1月 29 17:20:31 centos org.gnome.Shell.desktop[2544]: libinput error: client bug: timer event3 debounce short: offset negative (-37ms)
  1月 29 17:20:42 centos dbus-daemon[2488]: [session uid=1000 pid=2488] Activating via systemd: service name='org.freedesktop.Tracker1.Miner.Extract' unit='tracker-extract.service' requested by ':1.63' (uid=1000>
  1月 29 17:20:42 centos systemd[2453]: Starting Tracker metadata extractor...
-- Subject: Unit UNIT has begun start-up
-- Defined-By: systemd
-- Support: https://access.redhat.com/support
--
-- Unit UNIT has begun starting up.
  1月 29 17:20:43 centos dbus-daemon[2488]: [session uid=1000 pid=2488]
Successfully activated service 'org.freedesktop.Tracker1.Miner.Extract'
  1月 29 17:20:43 centos systemd[2453]: Started Tracker metadata extractor.
-- Subject: Unit UNIT has finished start-up
-- Defined-By: systemd
-- Support: https://access.redhat.com/support
--
-- Unit UNIT has finished starting up.
--
-- The start-up result is done.
  1月 29 17:20:53 centos systemd[2453]: tracker-extract.service: Succeeded.
-- Subject: Unit succeeded
-- Defined-By: systemd
-- Support: https://access.redhat.com/support
--
-- The unit UNIT has successfully entered the 'dead' state.

バージョン情報

・CentOS8.3
・adoptopenjdk-15
・Elastic_v7.10.1
・Fess_v13.10.2

・各種プラグインは↓7.10.0にしました
$ ./elasticsearch-<version>/bin/elasticsearch-plugin install org.codelibs:elasticsearch-analysis-fess:7.10.0
$ ./elasticsearch-<version>/bin/elasticsearch-plugin install org.codelibs:elasticsearch-analysis-extension:7.10.0
$ ./elasticsearch-<version>/bin/elasticsearch-plugin install org.codelibs:elasticsearch-configsync:7.10.0
$ ./elasticsearch-<version>/bin/elasticsearch-plugin install org.codelibs:elasticsearch-dataformat:7.10.0
$ ./elasticsearch-<version>/bin/elasticsearch-plugin install org.codelibs:elasticsearch-minhash:7.10.0