Can anyone help me to correct this error

Traceback (most recent call last):
File “apps/frappe/frappe/website/serve.py”, line 17, in get_response
endpoint, renderer_instance = path_resolver.resolve()
File “apps/frappe/frappe/website/path_resolver.py”, line 59, in resolve
if renderer_instance.can_render():
File “apps/frappe/frappe/website/page_renderers/document_page.py”, line 16, in can_render
if self.search_in_doctypes_with_web_view():
File “apps/frappe/frappe/website/page_renderers/document_page.py”, line 28, in search_in_doctypes_with_web_view
condition_field = self.get_condition_field(meta)
File “apps/frappe/frappe/website/page_renderers/document_page.py”, line 92, in get_condition_field
condition_field = controller.website.condition_field
AttributeError: ‘str’ object has no attribute ‘condition_field’

from the error message itself, seems a system bug.