# Kibana Dashboard - Unexpected token u in JSON at position 0

**URL:** <https://discuss.elastic.co/t/kibana-dashboard-unexpected-token-u-in-json-at-position-0/233674>\
**Category:** Kibana\
**Created:** [May 21, 2020, 6:35am UTC](https://discuss.elastic.co/t/kibana-dashboard-unexpected-token-u-in-json-at-position-0/233674 "2020-05-21T06:35:58Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![BALA\_BALA](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bala_bala/32/44655_2.png) [@BALA\_BALA](https://discuss.elastic.co/u/BALA_BALA)\
**Post date:** [May 21, 2020, 6:35am UTC](https://discuss.elastic.co/t/kibana-dashboard-unexpected-token-u-in-json-at-position-0/233674/1 "2020-05-21T06:35:58Z")

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Hi Team,

After we upgraded from 7.5.6 to 7.6.2 we are facing issue while try to load more than 90 days of data in Kibana, it fails with the following error :

Error in visualisation  
[esaggs] \> Unexpected token u in JSON at position 0

 ![Capture](https://us1.discourse-cdn.com/elastic/original/3X/d/1/d13626dce264718121eb5ceb117e9c25cca98bab.jpeg)

The request validation errors can be ignored? The auto-refresh bug fixed in 7.6.2 version ?

# Kibana throws esaggs error when timeout is hit #57327

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**Author:** ![joshdover](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/joshdover/32/42020_2.png) [@joshdover](https://discuss.elastic.co/u/joshdover)\
**Post date:** [May 21, 2020, 7:24pm UTC](https://discuss.elastic.co/t/kibana-dashboard-unexpected-token-u-in-json-at-position-0/233674/2 "2020-05-21T19:24:26Z")

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Hi there!

It does appear you may he hitting #57327. Could you click the "see the full error" button and paste the stack trace here?

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<div class="post-metadata">

**Author:** ![BALA\_BALA](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bala_bala/32/44655_2.png) [@BALA\_BALA](https://discuss.elastic.co/u/BALA_BALA)\
**Post date:** [May 22, 2020, 8:27am UTC](https://discuss.elastic.co/t/kibana-dashboard-unexpected-token-u-in-json-at-position-0/233674/3 "2020-05-22T08:27:21Z")

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Hi Josh,  
Not much apart from below

 ![image](https://us1.discourse-cdn.com/elastic/original/3X/a/2/a2b5b2e82a9c192649a260460f576bf855a0f5aa.png)

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<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:** [June 19, 2020, 8:38am UTC](https://discuss.elastic.co/t/kibana-dashboard-unexpected-token-u-in-json-at-position-0/233674/4 "2020-06-19T08:38:40Z")

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