LMTool error

`Error in FORM header! [formtype=simple&corpus=corpus]`
`FORM error in form block (formtype)`
`FORM error in form file (corpus)`
`FORM error in form file (handdict)`
`FORM error in form file (extrawords)`
`FORM error in form block (phoneset)`
`FORM error in form block (bracket)`
`FORM error in form block (model)`
`FORM error in form block (class)`
`FORM error in form block (discount)`
`Terminating process.`