Appraisal : Calculate Total Error

i deleted calculate_total function from apprasial.py and still gives me Total cannot be zero

i Tried bench restart & migrate & clear-cache and still gives me this error everytime

import frappe
from frappe import _
from frappe.model.document import Document
from frappe.model.mapper import get_mapped_doc
from frappe.utils import flt, getdate

from erpnext.hr.utils import set_employee_name, validate_active_employee


class Appraisal(Document):
	def validate(self):
		if not self.status:
			self.status = "Draft"

		if not self.goals:
			frappe.throw(_("Goals cannot be empty"))

		validate_active_employee(self.employee)
		set_employee_name(self)
		self.validate_dates()
		self.validate_existing_appraisal()
		

	def get_employee_name(self):
		self.employee_name = frappe.db.get_value("Employee", self.employee, "employee_name")
		return self.employee_name

	def validate_dates(self):
		if getdate(self.start_date) > getdate(self.end_date):
			frappe.throw(_("End Date can not be less than Start Date"))

	def validate_existing_appraisal(self):
		chk = frappe.db.sql(
			"""select name from `tabAppraisal` where employee=%s
			and (status='Submitted' or status='Completed')
			and ((start_date>=%s and start_date<=%s)
			or (end_date>=%s and end_date<=%s))""",
			(self.employee, self.start_date, self.end_date, self.start_date, self.end_date),
		)
		if chk:
			frappe.throw(
				_("Appraisal {0} created for Employee {1} in the given date range").format(
					chk[0][0], self.employee_name
				)
			)


	def on_submit(self):
		frappe.db.set(self, "status", "Submitted")

	def on_cancel(self):
		frappe.db.set(self, "status", "Cancelled")


@frappe.whitelist()
def fetch_appraisal_template(source_name, target_doc=None):
	target_doc = get_mapped_doc(
		"Appraisal Template",
		source_name,
		{
			"Appraisal Template": {
				"doctype": "Appraisal",
			},
			"Appraisal Template Goal": {
				"doctype": "Appraisal Goal",
			},
		},
		target_doc,
	)

	return target_doc

Hi @GrandMaster,

We tested so we did not find any type of error.
please again check for it.

Thank You!