# ​Restart application failed from enginemanager to Wowza Streaming Engine

**URL:** <https://community.wowza.com/t/restart-application-failed-from-enginemanager-to-wowza-streaming-engine/50085>\
**Category:** Wowza Developer Dojo\
**Created:** [November 7, 2017, 10:19pm UTC](https://community.wowza.com/t/restart-application-failed-from-enginemanager-to-wowza-streaming-engine/50085 "2017-11-07T22:19:05Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Richard\_Li](https://avatars.discourse-cdn.com/v4/letter/r/a88e57/32.png) [@Richard\_Li](https://community.wowza.com/u/Richard_Li)\
**Post date:** [November 7, 2017, 10:19pm UTC](https://community.wowza.com/t/restart-application-failed-from-enginemanager-to-wowza-streaming-engine/50085/1 "2017-11-07T22:19:05Z")

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Restart application failed from enginemanager to Wowza Streaming Engine, can’t login Wowza Streaming Engine again, please help!

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**Author:** ![Michelle\_B](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/michelle_b/32/394_2.png) [@Michelle\_B](https://community.wowza.com/u/Michelle_B)\
**Post date:** [November 10, 2017, 12:36am UTC](https://community.wowza.com/t/restart-application-failed-from-enginemanager-to-wowza-streaming-engine/50085/2 "2017-11-10T00:36:27Z")

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It sounds like the Engine service is not running. Can you confirm if the Engine [service is started](https://www.wowza.com/docs/how-to-start-and-stop-wowza-streaming-engine-software)?

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**Author:** ![Richard\_Li](https://avatars.discourse-cdn.com/v4/letter/r/a88e57/32.png) [@Richard\_Li](https://community.wowza.com/u/Richard_Li)\
**Post date:** [November 10, 2017, 4:38pm UTC](https://community.wowza.com/t/restart-application-failed-from-enginemanager-to-wowza-streaming-engine/50085/3 "2017-11-10T16:38:08Z")

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Wowza engine is working fine, we save any edited screen from Wowza streaming engine, always got ‘Null Pointer Exception’ and Stack Trace list, so we press restart button to restart application, Wowza engine stopped work about 16 hours, then shows error message. We can’t get technical support from Wowza as we are using Wowza standard plan, please help us, thank you!

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**Author:** ![Michelle\_B](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/michelle_b/32/394_2.png) [@Michelle\_B](https://community.wowza.com/u/Michelle_B)\
**Post date:** [November 22, 2017, 2:20am UTC](https://community.wowza.com/t/restart-application-failed-from-enginemanager-to-wowza-streaming-engine/50085/4 "2017-11-22T02:20:53Z")

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Hi Richard, can you post your ticket number here? As long as the email address that you are using to [open a support ticket](https://www.wowza.com/support/open-ticket) is listed as a valid support contact, then you do qualify for support. I can pick it up and discuss it with you through your ticket, if you prefer.  
Otherwise, it sounds like a corrupted installation for your Manager service then. Have you tried restarting your Manager service as well, or running the Manager service in standalone mode?

Michelle