Loan Disbursement asking for Customer

I have installed a fresh erpnext version 15 system along with the lending app, I am trying to submit the loan disbursement but to no avail, I am having an error message, please refer to this picture:

image

I have checked the Doctype itself through customization and editing and found that there is no field that would want a Customer other than the Applicant field, could some help me?

The issue has been fixed. We will not be making any further changes in version 15. If you are using the frappe erpnext version 15, then Lending version 1 is compatible with it.