Traceback (most recent call last):
File “/home/ergonomics/erpnext_custom/frappe-bench/apps/frappe/frappe/app.py”, line 56, in application
response = frappe.handler.handle()
File “/home/ergonomics/erpnext_custom/frappe-bench/apps/frappe/frappe/handler.py”, line 21, in handle
data = execute_cmd(cmd)
File “/home/ergonomics/erpnext_custom/frappe-bench/apps/frappe/frappe/handler.py”, line 52, in execute_cmd
return frappe.call(method, **frappe.form_dict)
File “/home/ergonomics/erpnext_custom/frappe-bench/apps/frappe/frappe/init.py”, line 913, in call
return fn(*args, **newargs)
File “/home/ergonomics/erpnext_custom/frappe-bench/apps/frappe/frappe/desk/treeview.py”, line 45, in get_children
parent, as_dict=1)
File “/home/ergonomics/erpnext_custom/frappe-bench/apps/frappe/frappe/database.py”, line 142, in sql
self._cursor.execute(query, values)
File “/home/ergonomics/erpnext_custom/frappe-bench/env/local/lib/python2.7/site-packages/MySQLdb/cursors.py”, line 250, in execute
self.errorhandler(self, exc, value)
File “/home/ergonomics/erpnext_custom/frappe-bench/env/local/lib/python2.7/site-packages/MySQLdb/connections.py”, line 50, in defaulterrorhandler
raise errorvalue
OperationalError: (1054, “Unknown column ‘parent_task’ in ‘where clause’”)
Backout your change that raised this traceback, that would be your problem code…