Graylog doesn't process messages anymore


we have a situation with our graylog server (3.3.2). For an unknown reason messages are not processed anymore. Messages are in journal and now journal is full.

I can see on the logs when starting graylog server the following message :

2020-07-23T15:37:38.643+02:00 ERROR [Messages] Failed to index [14] messages. Please check the index error log in your web interface for the reason. Error: One or more of the items in the Bulk request failed, check BulkResult.getItems() for more information.
2020-07-23T15:37:38.683+02:00 WARN  [Messages] Failed to index message: index=<graylog_2694> id=<ab8e08c0-cce9-11ea-abea-005056a775aa> error=<{"type":"mapper_parsing_exception","reason":"failed to parse field [StatusCode] of type [long] in document with id 'ab8e08c0-cce9-11ea-abea-005056a775aa'","caused_by":{"type":"illegal_argument_exception","reason":"For input string: \"OK\""}}>

I understand that some data in StatusCode are not supposed to be string, but how come this break totally graylog ?

Thanks for your help.

he @romgo

that should not be the reason for Graylog to break. It is very likely that something else is the reason.

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