# Error message while bootstrap

**URL:** <https://forum.certara.com/t/error-message-while-bootstrap/2904>\
**Category:** Modelling and Simulation\
**Created:** [November 5, 2015, 6:44am UTC](https://forum.certara.com/t/error-message-while-bootstrap/2904 "2015-11-05T06:44:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![harishkk](https://avatars.discourse-cdn.com/v4/letter/h/54ee81/32.png) [@harishkk](https://forum.certara.com/u/harishkk)\
**Post date:** [November 5, 2015, 6:44am UTC](https://forum.certara.com/t/error-message-while-bootstrap/2904/1 "2015-11-05T06:44:16Z")

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Hello Certara,

Ima trying to run using boot strap for my NLME data using the previous run’s estimates

but i found this error " Model execution failed or cancelled" Run cancelled due to sample replicates failing

what might be the reason

can anyone help me,Iam attaching the screenshot

Regards

HK

 ![boot strap error.jpg](https://us1.discourse-cdn.com/certara/original/2X/a/a68aba33ef3630769adf4eb13a97e14934f31f52.jpeg)

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<div class="post-metadata">

**Author:** ![Samer\_Mouksassi](https://avatars.discourse-cdn.com/v4/letter/s/ce7236/32.png) [@Samer\_Mouksassi](https://forum.certara.com/u/Samer_Mouksassi)\
**Post date:** [November 5, 2015, 2:19pm UTC](https://forum.certara.com/t/error-message-while-bootstrap/2904/2 "2015-11-05T14:19:49Z")

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Hello Harish,

Can you give more details about your phoenix version and the data used for the fitting how many subjects etc.

Possible to share the project ?

bests,

Samer