What's wrong with my Kibana,when it start

When I re-install Kibana and X-pack, start Kibana has been prompting this error:

so,what should i do.
thanks for your help.

Did you instal X-Pack on Elasticsearch as well?

Yes, I have installed it.

Did you restart Elasticsearch afterwards?
What does host:9200/_cat/plugins show?

i'v restart elasticsearch.
After the browser opens(http://localhost:9200/_cat/plugins), it is blank.
but in http://localhost:9200/ everything is normal

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