# Transacvtion group config error

**URL:** <https://forum.inductiveautomation.com/t/transacvtion-group-config-error/9759>\
**Category:** Ignition\
**Created:** [March 2, 2015, 11:09am UTC](https://forum.inductiveautomation.com/t/transacvtion-group-config-error/9759 "2015-03-02T11:09:04Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![alix\_CEC](https://avatars.discourse-cdn.com/v4/letter/a/94ad74/32.png) [@alix\_CEC](https://forum.inductiveautomation.com/u/alix_CEC)\
**Post date:** [March 2, 2015, 11:09am UTC](https://forum.inductiveautomation.com/t/transacvtion-group-config-error/9759/1 "2015-03-02T11:09:04Z")

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I had a transaction group running correctly, then I wanted to update this run-always expression item :  
[color=#0000BF]dateExtract({[~]t\_stamp\_round\_prec},“month”)+1[/color]

To this :  
[color=#0000BF]dateExtract({[~]t\_stamp\_round\_prec},“month”)[/color]

My group is working with a trigger on this item ‘Mois’, on value change.  
Then when I saved the project to apply changes, the group stopped and is now unable to start (cf. image).  
The error message is :  
[color=#BF0000]Unable to start group.  
Task java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@1b49a95f rejected from java.util.concurrent.ScheduledThreadPoolExecutor@6a9d65a[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 306][/color]

Does anybody know what happened and what I sould do to fix it ?  
Thanks everyone.

 ![](https://us1.discourse-cdn.com/inductiveautomation/original/2X/b/b006fb17560764ff898abe4a4d7f03b80336da49.png)