Get text Error in the Email Purchase Order

Error:
There is text_new_instruction on Email Purchase Order .

Solution:
The ‘text_new_instruction’ string comes out because it is not translated in the language files. Please check in path: catalog/language/english/mail/order.php.

Find this code:
$_['text_new_instruction']       = 'YOUR TEXT'; 

Edit  YOUR TEXT.

Error Handling