Problem with data graylog

Good day! I have a stack - Elasticsearch 5.6, Graylog and mongo and grafana.
When all run from docker it view on grafana very well with inputs from graylog. But after 4 weeks (about this date) it is not show data on grafana. Graylog works. It is repeat 2 times. Can you help me what is this.
Thanks you.

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