After Insert and Edit Category then show some error

[ghost]

"SQLSTATE[42000]: Syntax error or access violation: 1305 FUNCTION new_bagisto.get_url_path_of_category does not exist (SQL: update categories set _lft = case when _lft >= 50 then _lft+2 else _lft end, _rgt = case when _rgt >= 50 then _rgt+2 else _rgt end where (_lft >= 50 or _rgt >= 50))