Production order cannot be changed due to status LKD and CLSD

Hi,

There's a production order whose status is LKD and CLSD. I changed user stats from CLSD to OPEN via COHV. Then I'm tring to unlock this production order through functions->restrict processing->unlock. And the error message is 'User status CLSD is active'.

I want to delete this production order. How can I change the status?

Regards,

Joanne