Weird kibana error - invalid code — missing end-of-block

I just started seeing this error on my kibana server :

read err { Error: invalid code -- missing end-of-block at 
InflateRaw.zlibOnError (zlib.js:153:15) errno: -3, code: 
'Z_DATA_ERROR' }

There is no helpful information in the corresponding logs :

{"type":"log","@timestamp":"2019-01-22T13:46:34Z","tags": 
["license","info","xpack"],"pid":17310,"message":"Imported license 
information from Elasticsearch for the [monitoring] cluster: mode: 
basic | status: active"}

However, in the browser there is an error: Kibana server is not ready yet.
I have no idea how to tackle this!

UPDATE

I have seen additional error in elasticsearch logs that might suggest the cause of failure :

[2019-01-24T11:15:47,216][INFO ][o.e.c.m.MetaDataIndexTemplateService] [cloudraid01] adding template [.management-beats] for index patterns [.management-beats]

This seems to be related to metricbeats.

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