Bench update v13 Error

Error when running #bench update --patch
erpnext 13.0.0
frappe 13.0.0

Updating DocTypes for frappe : [============ ] 31%Traceback (most recent call last):
File “/usr/lib64/python3.6/runpy.py”, line 193, in _run_module_as_main
main”, mod_spec)
File “/usr/lib64/python3.6/runpy.py”, line 85, in _run_code
exec(code, run_globals)
File “/home/frappe/frappe-bench/apps/frappe/frappe/utils/bench_helper.py”, line 101, in
main()
File “/home/frappe/frappe-bench/apps/frappe/frappe/utils/bench_helper.py”, line 18, in main
click.Group(commands=commands)(prog_name=‘bench’)
File “/home/frappe/frappe-bench/env/lib/python3.6/site-packages/click/core.py”, line 764, in call
return self.main(*args, **kwargs)
File “/home/frappe/frappe-bench/env/lib/python3.6/site-packages/click/core.py”, line 717, in main
rv = self.invoke(ctx)
File “/home/frappe/frappe-bench/env/lib/python3.6/site-packages/click/core.py”, line 1137, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File “/home/frappe/frappe-bench/env/lib/python3.6/site-packages/click/core.py”, line 1137, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File “/home/frappe/frappe-bench/env/lib/python3.6/site-packages/click/core.py”, line 956, in invoke
return ctx.invoke(self.callback, **ctx.params)
File “/home/frappe/frappe-bench/env/lib/python3.6/site-packages/click/core.py”, line 555, in invoke
return callback(*args, **kwargs)
File “/home/frappe/frappe-bench/env/lib/python3.6/site-packages/click/decorators.py”, line 17, in new_func
return f(get_current_context(), *args, **kwargs)
File “/home/frappe/frappe-bench/apps/frappe/frappe/commands/init.py”, line 27, in _func
ret = f(frappe._dict(ctx.obj), *args, **kwargs)
File “/home/frappe/frappe-bench/apps/frappe/frappe/commands/site.py”, line 300, in migrate
skip_search_index=skip_search_index
File “/home/frappe/frappe-bench/apps/frappe/frappe/migrate.py”, line 70, in migrate
frappe.model.sync.sync_all(verbose=verbose)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/sync.py”, line 19, in sync_all
sync_for(app, force, verbose=verbose, reset_permissions=reset_permissions)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/sync.py”, line 70, in sync_for
reset_permissions=reset_permissions, for_sync=True)
File “/home/frappe/frappe-bench/apps/frappe/frappe/modules/import_file.py”, line 70, in import_file_by_path
ignore_version=ignore_version, reset_permissions=reset_permissions)
File “/home/frappe/frappe-bench/apps/frappe/frappe/modules/import_file.py”, line 108, in import_doc
doc = frappe.get_doc(docdict)
File “/home/frappe/frappe-bench/apps/frappe/frappe/init.py”, line 821, in get_doc
doc = frappe.model.document.get_doc(*args, **kwargs)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 74, in get_doc
return controller(*args, **kwargs)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 121, in init
super(Document, self).init(kwargs)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/base_document.py”, line 81, in init
self.update(d)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/base_document.py”, line 112, in update
self.set(key, value)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/base_document.py”, line 159, in set
self.extend(key, value)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/base_document.py”, line 205, in extend
self.append(key, v)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/base_document.py”, line 182, in append
value = self._init_child(value, key)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/base_document.py”, line 217, in _init_child
value[“doctype”] = self.get_table_field_doctype(key)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/base_document.py”, line 332, in get_table_field_doctype
return self.meta.get_field(fieldname).options
AttributeError: ‘NoneType’ object has no attribute ‘options’

Any idea how to fix this?