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

**URL:** <https://discuss.elastic.co/t/weird-kibana-error-invalid-code-missing-end-of-block/165584>\
**Category:** Elasticsearch\
**Created:** [January 24, 2019, 11:31am UTC](https://discuss.elastic.co/t/weird-kibana-error-invalid-code-missing-end-of-block/165584 "2019-01-24T11:31:08Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![maineffort](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/maineffort/32/51134_2.png) [@maineffort](https://discuss.elastic.co/u/maineffort)\
**Post date:** [January 24, 2019, 11:31am UTC](https://discuss.elastic.co/t/weird-kibana-error-invalid-code-missing-end-of-block/165584/1 "2019-01-24T11:31:08Z")

</div>

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`.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [February 21, 2019, 11:31am UTC](https://discuss.elastic.co/t/weird-kibana-error-invalid-code-missing-end-of-block/165584/2 "2019-02-21T11:31:17Z")

</div>

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