# Saturn Errors

## SAT-1

**Unknown Website Environment**

This is an issue with your settings file, please go into your settings file and change the `WEBSITE_ENV` value to `1`.

{% hint style="warning" %}
You'll need to [reset your settings file checksum](https://docs.saturncms.net/1.0.0/troubleshooting/checksum-issues#reset-your-settings-file-checksum) to stop the checksum error message from showing.
{% endhint %}

## SAT-2

**Unable to load plugin**

Saturn was unable to load the plugin because the manifest file is missing.

## SAT-3

**Language file missing.**

Your language file is missing, you'll need to re-download it from our GitHub and put it in your /Assets/Languages folder.

## SAT-4

**Function not found.**

Saturn attempted to use a function but couldn't find it, this may be because you haven't enabled a PHP extension that it needs, or that it's not included in the plugin.

The error description will include a list of functions that it attempted to use, but couldn't find. You should ensure these functions are enabled if they're in PHP extensions.

## SAT-5

**Operation not supported.**

An operation that was requested is not supported by the function trying to run it.

The error description will include a list of accepted operations, please change the requested operation to one of these.

## SAT-6

**Error Resetting Checksums**

There was a problem whilst resetting the checksums. Please try again, or manually reset them.

## SAT-7

**File is not writeable**

Saturn does not have the required permissions to write to this file (see chmod command if you're on Linux).