"Object has no attribute 'get_page_info' " error in doctype after check "has web view

Hello every one,
I need help about this issue

These my doctype field
“fields”: [
{
“fieldname”: “question”,
“fieldtype”: “Long Text”,
“label”: “Question”
},
{
“fieldname”: “program_code”,
“fieldtype”: “Code”,
“label”: “Program Code”
},
{
“fieldname”: “output”,
“fieldtype”: “Long Text”,
“label”: “Output”
},
{
“fieldname”: “example_output”,
“fieldtype”: “Long Text”,
“label”: "Example Output "
},
{
“fieldname”: “route”,
“fieldtype”: “Data”,
“label”: “Route”
},
{
“default”: “0”,
“fieldname”: “published”,
“fieldtype”: “Check”,
“label”: “Published”
},
{
“fieldname”: “title”,
“fieldtype”: “Data”,
“label”: “title”
}
],
“has_web_view”: 1,
“index_web_pages_for_search”: 1,
“is_published_field”: “published”,

do I have to add new field with name of ‘get_page_info’?

Error happening when I click on the recorded of doctype in the website list page

if you need me to provide more details just let me know.

Thank you

Hi @alihussain
Did u get any solution on this