# mtc.js reporting errors

**URL:** <https://forum.mautic.org/t/mtc-js-reporting-errors/10593>\
**Category:** Product Support\
**Created:** [June 16, 2018, 2:28pm UTC](https://forum.mautic.org/t/mtc-js-reporting-errors/10593 "2018-06-16T14:28:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![zoqui](https://avatars.discourse-cdn.com/v4/letter/z/ee7513/32.png) [@zoqui](https://forum.mautic.org/u/zoqui)\
**Post date:** [June 16, 2018, 2:28pm UTC](https://forum.mautic.org/t/mtc-js-reporting-errors/10593/1 "2018-06-16T14:28:00Z")

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Hi  
I’m getting started with mauting and just put the tracking js code in one page of my web site.

But the injected mtc.js is throwing one exception uncaught exception:

mtc.js:60 Uncaught TypeError: Cannot read property ‘type’ of undefined  
at mtc.js:60  
at mtc.js:3  
at Object.MauticJS.processGatedVideos (mtc.js:60)  
at MauticJS.initGatedVideo (mtc.js:59)

I really appreciate any information that could help me to fix this issue.

Thank you very much

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<div class="post-metadata">

**Author:** ![zoqui](https://avatars.discourse-cdn.com/v4/letter/z/ee7513/32.png) [@zoqui](https://forum.mautic.org/u/zoqui)\
**Post date:** [June 16, 2018, 2:46pm UTC](https://forum.mautic.org/t/mtc-js-reporting-errors/10593/2 "2018-06-16T14:46:33Z")

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sorry it has been duplicated. Please forum administrator - remove this post.