Is this the first time you’ve seen this error? (Yes / No):
Yes
When did this problem seem to first start?
After installing Nextcloud Desktop
Summary of the issue:
After installing Nextcloud Desktop in a new laptop with Ubuntu 24.04 and synchronizing all my files, I can’t read my PDF, .txt and .R files anymore - there is a message starting HBEGIN:oc_encryption_module:OC_DEFAULT_MODULE:cipher:AES-256-CTR:signed:true:HEND. What can I do to recover all my data?
The error message indicates that you are using server-side encryption and that this is causing the problems. Can you provide further details? Are you using server-side encryption? Remember that server-side encryption does not protect the data on the server. It is only helpful if other sources such as AWS or Microsoft are integrated as external storage in the Nextcloud.
You can find some information here. With server side encryption you can not direct read the files /path/to/nextcloud/data/username/files with a file browser. Although this is also the case with E2EE.
The error message indicates an encryption problem. Perhaps you can simply reinstall the client. Also delete all current configurations. You may also want to check the settings afterwards. Maybe someone else has an idea.
Yes, thats helps, because similar issues habe already been reported be other users. If you would have search the forum for “tab.digital encription” you would have found this thread. You should contact tab.digital and ask them to recover your files:
