> For the complete documentation index, see [llms.txt](https://docs.sannybuilder.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sannybuilder.com/troubleshooting/errors/0086.md).

# 0086: Invalid array index

The script engine of Liberty City Stories and Vice City Stories games only allows [local variables](/language/data-types/variables.md#local-variables) to be [array indexes](/language/data-types/arrays.md#general-syntax).

**Possible solutions:** replace the global variable with a local variable:

```
$array($index,1) // error
$array(0@,1) // OK
```