What is the problem you are having with rclone?
I have used rclone in the past to upload my pictures, which was working fine, so I have already authenticated rclone to use Google Photos.
Now, after some time I am not able to use it again. It started with a 403 error message. I tried to re-authenticate, deleted the entry from the config and re-created it, but it always ends up with opening the browser, log-in to Google and then an error message after having authenticated to Google that "The app has blocked".
I searched a little bit around, but haven't found how to fix it.
I have tried the same on a second machine, but with the same result.
Appreciate your support 
Run the command 'rclone version' and share the full output of the command.
rclone version
rclone v1.70.2
- os/version: Microsoft Windows 10 Pro 22H2 22H2 (64 bit)
- os/kernel: 10.0.19045.5965 (x86_64)
- os/type: windows
- os/arch: amd64
- go/version: go1.24.4
- go/linking: static
- go/tags: cmount
Which cloud storage system are you using? (eg Google Drive)
Google Photos
The command you were trying to run (eg rclone copy /tmp remote:tmp)
rclone authorize "google photos"
Please run 'rclone config redacted' and share the full output. If you get command not found, please make sure to update rclone.
rclone config redacted
; empty config
### Double check the config for sensitive info before posting publicly
Not much to see here, as already explained I also tried to remove it from the config and recreate it.
A log from the command that you were trying to run with the -vv flag
rclone authorize "google photos" -vv
2025/06/30 16:05:30 DEBUG : rclone: Version "v1.70.2" starting with parameters ["rclone" "authorize" "google photos" "-vv"]
2025/06/30 16:05:30 DEBUG : **temp-fs**: config in: state="", result=""
2025/06/30 16:05:30 DEBUG : Using config file from "C:\\Users\\Micha\\AppData\\Roaming\\rclone\\rclone.conf"
2025/06/30 16:05:30 DEBUG : OAuth only is set - overriding return state
2025/06/30 16:05:30 DEBUG : **temp-fs**: config out: out=&{State:*oauth,,, Option:<nil> OAuth:<nil> Error: Result:}, err=<nil>
2025/06/30 16:05:30 DEBUG : **temp-fs**: config in: state="*oauth,,,", result=""
2025/06/30 16:05:30 DEBUG : **temp-fs**: config out: out=&{State:*oauth-confirm,,, Option:<nil> OAuth:<nil> Error: Result:}, err=<nil>
2025/06/30 16:05:30 DEBUG : **temp-fs**: config in: state="*oauth-confirm,,,", result=""
2025/06/30 16:05:30 DEBUG : Auto confirm is set, choosing default "true" for state "*oauth-islocal,,,", override by setting config parameter "config_is_local"
2025/06/30 16:05:30 DEBUG : **temp-fs**: config out: out=&{State:*oauth-islocal,,, Option:<nil> OAuth:<nil> Error: Result:true}, err=<nil>
2025/06/30 16:05:30 DEBUG : **temp-fs**: config in: state="*oauth-islocal,,,", result="true"
2025/06/30 16:05:30 DEBUG : **temp-fs**: config out: out=&{State:*oauth-do,,, Option:<nil> OAuth:<nil> Error: Result:}, err=<nil>
2025/06/30 16:05:30 DEBUG : **temp-fs**: config in: state="*oauth-do,,,", result=""
2025/06/30 16:05:30 NOTICE: Make sure your Redirect URL is set to "http://127.0.0.1:53682/" in your custom config.
2025/06/30 16:05:30 DEBUG : Starting auth server on 127.0.0.1:53682
2025/06/30 16:05:30 NOTICE: If your browser doesn't open automatically go to the following link: http://127.0.0.1:53682/auth?state=18qjnIgjQ-B6HCiIiuNO_Q
2025/06/30 16:05:30 NOTICE: Log in and authorize rclone for access
2025/06/30 16:05:30 NOTICE: Waiting for code...
2025/06/30 16:05:30 DEBUG : Redirecting browser to: https://accounts.google.com/o/oauth2/auth?access_type=offline&client_id=202264815644-rt1o1c9evjaotbpbab10m83i8cnjk077.apps.googleusercontent.com&redirect_uri=http%3A%2F%2F127.0.0.1%3A53682%2F&response_type=code&scope=openid+profile+https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fphotoslibrary.appendonly+https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fphotoslibrary.readonly.appcreateddata+https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fphotoslibrary.edit.appcreateddata&state=18qjnIgjQ-B6HCiIiuNO_Q
Error message:
Diese App ist blockiert
Diese App hat versucht, auf vertrauliche Daten in Ihrem Google-Konto zuzugreifen. Zum Schutz Ihres Kontos haben wir den Zugriff blockiert.
(English translation: This App is blocked. This app has tried to access sensitive data in your Google account. To protect your account we have blocked the access.)