# Address not mapped

Source: https://forum.modalai.com/topic/637/address-not-mapped
Category: General Questions (https://forum.modalai.com/category/2/general-questions)
Posted: 2022-01-06 01:56:27 UTC by wilkinsaf
Replies: 1 · Views: 588

## wilkinsaf · 2022-01-06 01:56:27 UTC

Hello, 

I am getting this following issue on a non-deterministic basis
![9ec00ec8-b24c-4ad5-b897-9dff4c8e4462-image.png](https://forum.modalai.com/assets/uploads/files/1641434101005-9ec00ec8-b24c-4ad5-b897-9dff4c8e4462-image.png) 

the main part being 

```
Fault address: 0x68
Address not mapped.
```

Now, from my research this appears to be a camera hardware issue. However, we are getting this error non-deterministically (about 50% of the time). 

Any ideas or suggestions would be great. Thanks!

## Reply by Guest · 2022-01-10 18:22:13 UTC

If you could run camera server manually with additional debug prints (i.e. ```voxl-camera-server -d 0```) and paste the output here, you'll be able to see more info about whats going on that'll make it easier to debug