Error from: Opening Invoice Creation Tool

I created a custom doctype “Container” and added it as link field in Opening Invoice Creation Tool Item. Upon creation of Opening Invoices there is an error: Row one container field can not be blank. After sometime, I deleted the field from OICTI, but still getting the same error. I even tried to reset the OICTI form in customization and deleting the Container doctype itself but it didn’t work.

Same field is working fine in Sales Invoice Item.

Frappe v13