# DVR: Null manifest entry

**URL:** <https://community.wowza.com/t/dvr-null-manifest-entry/53545>\
**Category:** Wowza Streaming Engine\
**Created:** [June 20, 2019, 3:00pm UTC](https://community.wowza.com/t/dvr-null-manifest-entry/53545 "2019-06-20T15:00:47Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Anurag\_Saini](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@Anurag\_Saini](https://community.wowza.com/u/Anurag_Saini)\
**Post date:** [June 20, 2019, 3:00pm UTC](https://community.wowza.com/t/dvr-null-manifest-entry/53545/1 "2019-06-20T15:00:47Z")

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I am currently getting this in my error logs on WSE-4.7.7:

DvrStreamManagerBase.addManifestEntries[live/_definst_/office1.stream] : entry is null.

What does this error mean?

Comment if you need more logs or information.

Java-1.8, Ubuntu 16.04

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<div class="post-metadata">

**Author:** ![Rose\_Power-Wowza\_Com](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/rose_power-wowza_com/32/431_2.png) [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)\
**Post date:** [June 21, 2019, 6:28pm UTC](https://community.wowza.com/t/dvr-null-manifest-entry/53545/2 "2019-06-21T18:28:42Z")

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This does not go in the Hire a Consultant forum…moving to Engine forum. This is for projects you are willing to hire a consultant for to get assistance. Thank you.

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<div class="post-metadata">

**Author:** ![Rose\_Power-Wowza\_Com](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/rose_power-wowza_com/32/431_2.png) [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)\
**Post date:** [June 26, 2019, 3:47pm UTC](https://community.wowza.com/t/dvr-null-manifest-entry/53545/3 "2019-06-26T15:47:55Z")

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This error usually results from an issue with the source stream which is causing issues in for nDVR @Anurag Saini

You can add a sort buffer which will give Wowza more time to sort the incoming packets, please add this buffer to the Streams/Properties container in the Application.xml.

sortPackets true Boolean sortBufferSize 6000 Integer

The default is 2000 ms (2 seconds), this can be increased to 6000 which may resolve the error message.