# Internal error on command:"PREP"

**URL:** <https://klipper.discourse.group/t/internal-error-on-command-prep/24644>\
**Category:** General Discussion\
**Created:** [August 20, 2025, 2:54pm UTC](https://klipper.discourse.group/t/internal-error-on-command-prep/24644 "2025-08-20T14:54:56Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![fargkenob](https://avatars.discourse-cdn.com/v4/letter/f/47e85d/32.png) [@fargkenob](https://klipper.discourse.group/u/fargkenob)\
**Post date:** [August 20, 2025, 3:38pm UTC](https://klipper.discourse.group/t/internal-error-on-command-prep/24644/3 "2025-08-20T15:38:46Z")

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the command is used to PREP the Armored Box Turtle using an AFC-lite board with btt 2209’s

System was working fine until update.

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_[View the full topic](https://klipper.discourse.group/t/internal-error-on-command-prep/24644)._