# Exception: Can't stop a stopwatch that hasn't been started!

**URL:** <https://matillioncommunity.discourse.group/t/exception-cant-stop-a-stopwatch-that-hasnt-been-started/1929>\
**Category:** Matillion ETL\
**Created:** [October 27, 2022, 12:10pm UTC](https://matillioncommunity.discourse.group/t/exception-cant-stop-a-stopwatch-that-hasnt-been-started/1929 "2022-10-27T12:10:11Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Faouzi](https://avatars.discourse-cdn.com/v4/letter/f/258eb7/32.png) [@Faouzi](https://matillioncommunity.discourse.group/u/Faouzi)\
**Post date:** [October 27, 2022, 12:10pm UTC](https://matillioncommunity.discourse.group/t/exception-cant-stop-a-stopwatch-that-hasnt-been-started/1929/1 "2022-10-27T12:10:11Z")

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Python Script component which ran with the same code so many times, suddenly returned this exception. It was a one time failure and didn't appear next time the job ran. Also, there was no change regarding the jobs running in parallel. A similar prolem was raised in https://metlcommunity.matillion.com/s/question/0D54G00007ykMzoSAE/ but now solution/explanation was given.

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**Author:** ![ChikaMatillionCommunityMgr](https://avatars.discourse-cdn.com/v4/letter/c/c5a1d2/32.png) [@ChikaMatillionCommunityMgr](https://matillioncommunity.discourse.group/u/ChikaMatillionCommunityMgr)\
**Post date:** [January 23, 2023, 6:51pm UTC](https://matillioncommunity.discourse.group/t/exception-cant-stop-a-stopwatch-that-hasnt-been-started/1929/2 "2023-01-23T18:51:27Z")

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Hi [@Faouzi](https://matillioncommunity.discourse.group/u/Faouzi)​

Possibly has to do with deprecated Python versions so I'd recommend raising a support ticket, if you haven't already. Please update the Community.

Best,

Chika