Nexcloud OAuth doesn't work with n8n

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Nextcloud version (eg, 20.0.5): 23.0.0
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The issue:
Hello Community!
Am trying to configure n8n with Nextcloud, but something seems wrong with:

  • Authorization URL: /apps/oauth2/authorize
  • Access Token URL: /apps/oauth2/api/v1/token

The Client ID and the Secret Key are generated successfully.

Can someone help please?