# PreArm: Internal errors 0x1 I:959 mapfailure

**URL:** <https://discuss.bluerobotics.com/t/prearm-internal-errors-0x1-i-959-mapfailure/18525>\
**Category:** Blue Robotics Software\
**Created:** [November 10, 2024, 5:55pm UTC](https://discuss.bluerobotics.com/t/prearm-internal-errors-0x1-i-959-mapfailure/18525 "2024-11-10T17:55:17Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![diveexplorer](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/diveexplorer/32/17493_2.png) [@diveexplorer](https://discuss.bluerobotics.com/u/diveexplorer)\
**Post date:** [November 10, 2024, 5:55pm UTC](https://discuss.bluerobotics.com/t/prearm-internal-errors-0x1-i-959-mapfailure/18525/1 "2024-11-10T17:55:17Z")

</div>

I sometimes get this warning message.

 ![Screenshot 2024-11-10 17.51.27](https://us1.discourse-cdn.com/flex019/uploads/bluerobotics/original/2X/e/e3daa53999f203513170fa146c06db73a978a32c.jpeg)

_ **PreArm: Internal errors 0x1 I:959 mapfailure** _

Anybody else getting this. Do you have any information of origin of it?

When this warning occur, there is not option to arm the vehicle. I can get rid of this warning just be restarting the vehicle. But I want to know more of this “warning”.

Software versions.  
ArduSub: 4.1.2 (Stable)  
BlueOS: 1.3.1  
QGC: v4.4.2  
Ping Viewer: v2.5.1