# Unhandled exception during run, when starting klipper

**URL:** <https://klipper.discourse.group/t/unhandled-exception-during-run-when-starting-klipper/25568>\
**Category:** General Discussion\
**Created:** [January 29, 2026, 6:54pm UTC](https://klipper.discourse.group/t/unhandled-exception-during-run-when-starting-klipper/25568 "2026-01-29T18:54:44Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Nico49](https://avatars.discourse-cdn.com/v4/letter/n/59ef9b/32.png) [@Nico49](https://klipper.discourse.group/u/Nico49)\
**Post date:** [January 29, 2026, 6:54pm UTC](https://klipper.discourse.group/t/unhandled-exception-during-run-when-starting-klipper/25568/1 "2026-01-29T18:54:44Z")

</div>

### Basic Information:

Printer Model: Voron 2.4  
 MCU / Printerboard: Fysetc S6 V2.1  
 Host / SBC: Orange Pi 3 LTS

[klippy.log](https://klipper.discourse.group/uploads/short-url/9SGyjc5GYq8lDrbWOpTrHh9rTa9.log) (181.2 KB)

klippy.log

_Fill out above information and_ _ **in all cases attach your** _ **`klippy.log` _file_** (use zip to compress it, if too big). _Pasting your_ `printer.cfg` _is **not** needed_  
_ **Be sure to check our “Knowledge Base” Category first. Most relevant items, e.g. error messages, are covered there** _

### Describe your issue:

Since Klipper Commit 2a1027c i have this error when i start my printer:

Klipper reports: SHUTDOWN

```auto
Unhandled exception during run
Once the underlying issue is corrected, use the
"FIRMWARE_RESTART" command to reset the firmware, reload the
config, and restart the host software.
Printer is shutdown

```

Klipper Commit f33c76d does not have this error.  
I have a usb cartographer probe.  
Is there something i have to change it the config file, when using klipper newer then commit f33c76d?

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<div class="post-metadata">

**Author:** ![3dcoded](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/3dcoded/32/20297_2.png) [@3dcoded](https://klipper.discourse.group/u/3dcoded)\
**Post date:** [January 29, 2026, 7:05pm UTC](https://klipper.discourse.group/t/unhandled-exception-during-run-when-starting-klipper/25568/2 "2026-01-29T19:05:36Z")

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Hi @Nico49 ,

Please see this post regarding the Cartographer:

> [@Quad\_gantry\_level error](https://klipper.discourse.group/t/quad-gantry-level-error/25559/4):
>
> Hi @bigsub , From the Cartographer Discord: Don’t updated too Klipper v0.13.0-501, it breaks compatibility. Update to fix will be released in the coming days. If you want, you can join their Discord:

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<div class="post-metadata">

**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/klipper/original/1X/64419bf2aac6639e6ef5cef200dcd456b0a01ac3.png) [@system](https://klipper.discourse.group/u/system)\
**Post date:** [March 30, 2026, 7:06pm UTC](https://klipper.discourse.group/t/unhandled-exception-during-run-when-starting-klipper/25568/3 "2026-03-30T19:06:35Z")

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