# Petclinic Lab Metrics Internal Server Error 500 Lab 4.1

**URL:** <https://discuss.elastic.co/t/petclinic-lab-metrics-internal-server-error-500-lab-4-1/340751>\
**Category:** Elastic Training\
**Created:** [August 14, 2023, 12:12pm UTC](https://discuss.elastic.co/t/petclinic-lab-metrics-internal-server-error-500-lab-4-1/340751 "2023-08-14T12:12:27Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![lucasyuki](https://avatars.discourse-cdn.com/v4/letter/l/7ba0ec/32.png) [@lucasyuki](https://discuss.elastic.co/u/lucasyuki)\
**Post date:** [August 14, 2023, 12:12pm UTC](https://discuss.elastic.co/t/petclinic-lab-metrics-internal-server-error-500-lab-4-1/340751/1 "2023-08-14T12:12:27Z")

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Course: \<Which course are you asking about?\>  
Version: \<And which particular version?\>  
Question: \<Please add details here!\>

I had done the lab until I arrived at the 4th module but as soon as I realized I went to Metrics and I was giving this error (Internal Server Error 500, before it was working  
 ![image](https://us1.discourse-cdn.com/elastic/original/3X/d/6/d6b27bdb820d4a5dcc16e75f7ed591f2d1ddb152.png)

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**Author:** ![Romain\_Geffraye](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/romain_geffraye/32/77053_2.png) [@Romain\_Geffraye](https://discuss.elastic.co/u/Romain_Geffraye)\
**Post date:** [August 16, 2023, 7:06am UTC](https://discuss.elastic.co/t/petclinic-lab-metrics-internal-server-error-500-lab-4-1/340751/2 "2023-08-16T07:06:27Z")

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Hello Lucas, which course is it?

If you are following an on-demand class, the public DNS will change after a pause. You need to fetch the new DNS after resuming your environment.

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**Author:** ![lucasyuki](https://avatars.discourse-cdn.com/v4/letter/l/7ba0ec/32.png) [@lucasyuki](https://discuss.elastic.co/u/lucasyuki)\
**Post date:** [August 16, 2023, 2:22pm UTC](https://discuss.elastic.co/t/petclinic-lab-metrics-internal-server-error-500-lab-4-1/340751/3 "2023-08-16T14:22:54Z")

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Hi Romain  
My course is Elastic observality engineer on demand,

What do you mean by that, how can I do it? i always hit the new dns after resumed

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [September 15, 2023, 2:23pm UTC](https://discuss.elastic.co/t/petclinic-lab-metrics-internal-server-error-500-lab-4-1/340751/4 "2023-09-15T14:23:31Z")

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