Patch Error V5 to V7

Executing erpnext.patches.v6_16.update_billing_status_in_dn_and_pr in site1.local (1bd3e0294d)
Traceback (most recent call last):
  File "/usr/lib/python2.7/runpy.py", line 162, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/home/vef1/frappe-bench/apps/frappe/frappe/utils/bench_helper.py", line 79, in <module>
    main()
  File "/home/vef1/frappe-bench/apps/frappe/frappe/utils/bench_helper.py", line 16, in main
    click.Group(commands=commands)(prog_name='bench')
  File "/home/vef1/frappe-bench/env/local/lib/python2.7/site-packages/click/core.py", line 716, in __call__
    return self.main(*args, **kwargs)
  File "/home/vef1/frappe-bench/env/local/lib/python2.7/site-packages/click/core.py", line 696, in main
    rv = self.invoke(ctx)
  File "/home/vef1/frappe-bench/env/local/lib/python2.7/site-packages/click/core.py", line 1060, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/vef1/frappe-bench/env/local/lib/python2.7/site-packages/click/core.py", line 1060, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/vef1/frappe-bench/env/local/lib/python2.7/site-packages/click/core.py", line 889, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/vef1/frappe-bench/env/local/lib/python2.7/site-packages/click/core.py", line 534, in invoke
    return callback(*args, **kwargs)
  File "/home/vef1/frappe-bench/env/local/lib/python2.7/site-packages/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/home/vef1/frappe-bench/apps/frappe/frappe/commands/__init__.py", line 24, in _func
    ret = f(frappe._dict(ctx.obj), *args, **kwargs)
  File "/home/vef1/frappe-bench/apps/frappe/frappe/commands/site.py", line 207, in migrate
    migrate(context.verbose, rebuild_website=rebuild_website)
  File "/home/vef1/frappe-bench/apps/frappe/frappe/migrate.py", line 27, in migrate
    frappe.modules.patch_handler.run_all()
  File "/home/vef1/frappe-bench/apps/frappe/frappe/modules/patch_handler.py", line 26, in run_all
    if not run_single(patchmodule = patch):
  File "/home/vef1/frappe-bench/apps/frappe/frappe/modules/patch_handler.py", line 60, in run_single
    return execute_patch(patchmodule, method, methodargs)
  File "/home/vef1/frappe-bench/apps/frappe/frappe/modules/patch_handler.py", line 80, in execute_patch
    frappe.get_attr(patchmodule.split()[0] + ".execute")()
  File "/home/vef1/frappe-bench/apps/erpnext/erpnext/patches/v6_16/update_billing_status_in_dn_and_pr.py", line 40, in execute
    doc.set_status(update=True, update_modified=False)
  File "/home/vef1/frappe-bench/apps/erpnext/erpnext/controllers/status_updater.py", line 110, in set_status
    self.db_set('status', self.status, update_modified = update_modified)
  File "/home/vef1/frappe-bench/apps/frappe/frappe/model/base_document.py", line 362, in db_set
    self.run_method('on_change')
  File "/home/vef1/frappe-bench/apps/frappe/frappe/model/document.py", line 661, in run_method
    return Document.hook(fn)(self, *args, **kwargs)
  File "/home/vef1/frappe-bench/apps/frappe/frappe/model/document.py", line 839, in composer
    return composed(self, method, *args, **kwargs)
  File "/home/vef1/frappe-bench/apps/frappe/frappe/model/document.py", line 824, in runner
    add_to_return_value(self, f(self, method, *args, **kwargs))
  File "/home/vef1/frappe-bench/apps/erpnext/erpnext/accounts/party_status.py", line 55, in notify_status
    if party.status == 'Open':
AttributeError: 'Supplier' object has no attribute 'status'