Can someone help fix the error message "new-purchase-order-not found"

ERPNext
1

Here is the message I encounter everytime I add new purchase order.

error msg
error msg712×206 22.3 KB

2

Which version?

Explain the entire process when this occurs. Describe the steps you are taking that are causing the error. Please provide a detailed explanation.

3

I already fix the bug. Thank you @NCP !