[v5] custom app forms not opening after bench update

Hello All,
I have taken bench update , now the forms in custom app not opening .following is error trace back,

form: {‘cmd’: u’frappe.desk.form.load.getdoc’,
‘doctype’: u’First Time Visitor’,
‘name’: u’FTV00000003’}

Traceback (innermost last):
File “/home/gangadhar/workspace/verve_new/frappe-bench/apps/frappe/frappe/app.py”, line 49, in application
response = frappe.handler.handle()
File “/home/gangadhar/workspace/verve_new/frappe-bench/apps/frappe/frappe/handler.py”, line 62, in handle
execute_cmd(cmd)
File “/home/gangadhar/workspace/verve_new/frappe-bench/apps/frappe/frappe/handler.py”, line 85, in execute_cmd
ret = frappe.call(method, *frappe.form_dict)
File “/home/gangadhar/workspace/verve_new/frappe-bench/apps/frappe/frappe/init.py”, line 684, in call
return fn(args, **newargs)
File “/home/gangadhar/workspace/verve_new/frappe-bench/apps/frappe/frappe/desk/form/load.py”, line 31, in getdoc
doc = frappe.get_doc(doctype, name)
File “/home/gangadhar/workspace/verve_new/frappe-bench/apps/frappe/frappe/init.py”, line 442, in get_doc
return frappe.model.document.get_doc(arg1, arg2)
File “/home/gangadhar/workspace/verve_new/frappe-bench/apps/frappe/frappe/model/document.py”, line 45, in get_doc
return controller(arg1, arg2)
TypeError: init() takes exactly 2 arguments (3 given)

Please suggest,
Thanks and regards,
Gangadhar kadam

Post issues on GitHub