V12 Google drive backup private files not backed up

erpnext 12.8.0
frappe 12.5.2

title

frappe.integrations.doctype.google_drive.google_drive.daily_backup

error

{‘method_name’: ‘frappe.integrations.doctype.google_drive.google_drive.daily_backup’, ‘log’: <function log at 0x7f1ca9c16f28>, ‘retry’: 0, ‘is_async’: True, ‘user’: ‘Administrator’, ‘kwargs’: {}, ‘job_name’: ‘frappe.integrations.doctype.google_drive.google_drive.daily_backup’, ‘event’: ‘daily_long’, ‘method’: <function daily_backup at 0x7f1ca9876950>, ‘site’: ‘localhost’}
Traceback (most recent call last):
File “/home/wks/frappe-bench/apps/frappe/frappe/utils/background_jobs.py”, line 102, in execute_job
method(**kwargs)
File “/home/wks/frappe-bench/apps/frappe/frappe/integrations/doctype/google_drive/google_drive.py”, line 223, in daily_backup
upload_system_backup_to_google_drive()
File “/home/wks/frappe-bench/apps/frappe/frappe/integrations/doctype/google_drive/google_drive.py”, line 212, in upload_system_backup_to_google_drive
google_drive.files().create(body=file_metadata, media_body=media, fields=“id”).execute()
File “/home/wks/frappe-bench/env/lib/python3.6/site-packages/googleapiclient/_helpers.py”, line 130, in positional_wrapper
return wrapped(*args, **kwargs)
File “/home/wks/frappe-bench/env/lib/python3.6/site-packages/googleapiclient/http.py”, line 827, in execute
_, body = self.next_chunk(http=http, num_retries=num_retries)
File “/home/wks/frappe-bench/env/lib/python3.6/site-packages/googleapiclient/_helpers.py”, line 130, in positional_wrapper
return wrapped(*args, **kwargs)
File “/home/wks/frappe-bench/env/lib/python3.6/site-packages/googleapiclient/http.py”, line 988, in next_chunk
headers=headers)
File “/home/wks/frappe-bench/env/lib/python3.6/site-packages/google_auth_httplib2.py”, line 198, in request
uri, method, body=body, headers=request_headers, **kwargs)
File “/home/wks/frappe-bench/env/lib/python3.6/site-packages/httplib2/init.py”, line 1991, in request
cachekey,
File “/home/wks/frappe-bench/env/lib/python3.6/site-packages/httplib2/init.py”, line 1690, in _request
content,
httplib2.RedirectMissingLocation: Redirected but the response is missing a Location: header.

backup result, NOTE that private files are not backed up, currently at 150MB (tar)

Have you got any solution for the issue?