# mautic.ERROR: CAMPAIGN: An exception occurred while executing 'SELECT

**URL:** https://forum.mautic.org/t/mautic-error-campaign-an-exception-occurred-while-executing-select/17103
**Category:** Product Support
**Created:** [November 23, 2020, 10:26am UTC](https://forum.mautic.org/t/mautic-error-campaign-an-exception-occurred-while-executing-select/17103 "2020-11-23T10:26:06Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![antonio-lazzari](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/antonio-lazzari/32/737_2.png) [@antonio-lazzari](https://forum.mautic.org/u/antonio-lazzari)
#### Post date: [November 23, 2020, 10:26am UTC](https://forum.mautic.org/t/mautic-error-campaign-an-exception-occurred-while-executing-select/17103/1 "2020-11-23T10:26:06Z")

</div>

**Your software**  
My Mautic version is: v3.1.2  
My PHP version is: 7.3.23  
My Database type and version is: 5.7.32

**Your problem**  
My problem is: campaigns don’t run with the error below  
These errors are showing in the log:  
mautic.ERROR: CAMPAIGN: An exception occurred while executing ‘SELECT t0.id AS id\_1, t0.name AS name\_2, t0.description AS description\_3, t0.type AS type\_4, t0.event\_type AS event\_type\_5, t0.event\_order AS event\_order\_6, t0.properties AS properties\_7, t0.trigger\_date AS trigger\_date\_8, t0.trigger\_interval AS trigger\_interval\_9, t0.trigger\_interval\_unit AS trigger\_interval\_unit\_10, t0.trigger\_hour AS trigger\_hour\_11, t0.trigger\_restricted\_start\_hour AS trigger\_restricted\_start\_hour\_12, t0.trigger\_restricted\_stop\_hour AS trigger\_restricted\_stop\_hour\_13, t0.trigger\_restricted\_dow AS trigger\_restricted\_dow\_14, t0.trigger\_mode AS trigger\_mode\_15, t0.decision\_path AS decision\_path\_16, t0.temp\_id AS temp\_id\_17, t0.channel AS channel\_18, t0.channel\_id AS channel\_id\_19, t0.campaign\_id AS campaign\_id\_20, t0.parent\_id AS parent\_id\_21 FROM campaign\_events t0 WHERE (t0.parent\_id IS NULL AND t0.campaign\_id = ?) ORDER BY t0.event\_order ASC’ with params [18]: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away

Steps I have tried to fix the problem: nothing