Error comming in import item list

1 
Traceback (most recent call last):
  File "/opt/bitnami/apps/erpnext/htdocs/frappe-bench/apps/frappe/frappe/core/doctype/data_import/importer.py", line 395, in upload
    doc.insert()
  File "/opt/bitnami/apps/erpnext/htdocs/frappe-bench/apps/frappe/frappe/model/document.py", line 222, in insert
    self._validate()
  File "/opt/bitnami/apps/erpnext/htdocs/frappe-bench/apps/frappe/frappe/model/document.py", line 458, in _validate
    self.validate_set_only_once()
  File "/opt/bitnami/apps/erpnext/htdocs/frappe-bench/apps/frappe/frappe/model/document.py", line 485, in validate_set_only_once
    frappe.CannotChangeConstantError)
  File "/opt/bitnami/apps/erpnext/htdocs/frappe-bench/apps/frappe/frappe/__init__.py", line 323, in throw
    msgprint(msg, raise_exception=exc, title=title, indicator='red')
  File "/opt/bitnami/apps/erpnext/htdocs/frappe-bench/apps/frappe/frappe/__init__.py", line 309, in msgprint
    _raise_exception()
  File "/opt/bitnami/apps/erpnext/htdocs/frappe-bench/apps/frappe/frappe/__init__.py", line 282, in _raise_exception
    raise raise_exception(encode(msg))
CannotChangeConstantError: Value cannot be changed for Series
2

please share version details. generally, bitnami image is not updated.

3

image