Uncaught server exception Error Code: 404 There was an error building this page

image

Traceback (most recent call last):
  File "apps/frappe/frappe/website/serve.py", line 18, in get_response
    response = renderer_instance.render()
  File "apps/frappe/frappe/website/page_renderers/list_page.py", line 12, in render
    return super().render()
  File "apps/frappe/frappe/website/page_renderers/template_page.py", line 78, in render
    html = self.get_html()
  File "apps/frappe/frappe/website/utils.py", line 510, in cache_html_decorator
    html = func(*args, **kwargs)
  File "apps/frappe/frappe/website/page_renderers/template_page.py", line 89, in get_html
    self.update_context()
  File "apps/frappe/frappe/website/page_renderers/template_page.py", line 157, in update_context
    data = self.run_pymodule_method("get_context")
  File "apps/frappe/frappe/website/page_renderers/template_page.py", line 219, in run_pymodule_method
    return method(self.context)
  File "apps/frappe/frappe/www/list.py", line 22, in get_context
    context.update(get_list_context(context, doctype) or {})
  File "apps/frappe/frappe/www/list.py", line 183, in get_list_context
    module = load_doctype_module(doctype)
  File "apps/frappe/frappe/modules/utils.py", line 230, in load_doctype_module
    module = get_doctype_module(doctype)
  File "apps/frappe/frappe/modules/utils.py", line 221, in get_doctype_module
    frappe.throw(_("DocType {} not found").format(doctype), exc=frappe.DoesNotExistError)
  File "apps/frappe/frappe/__init__.py", line 522, in throw
    msgprint(
  File "apps/frappe/frappe/__init__.py", line 490, in msgprint
    _raise_exception()
  File "apps/frappe/frappe/__init__.py", line 442, in _raise_exception
    raise raise_exception(msg)
frappe.exceptions.DoesNotExistError: DocType employee not found

How to resolve this?