reactor: consolidate encryption troubleshooting into enc. chapter

Signed-off-by: Josh <josh.t.richards@gmail.com>

Author: joshtrichards

admin_manual/issues/general_troubleshooting.rst

@@ -429,59 +429,11 @@ You can run the following SQL query to reset those after **backing up the databa
 
  UPDATE oc_filecache SET unencrypted_size=0 WHERE encrypted=0; 
 
-Troubleshooting downloading or decrypting files
------------------------------------------------
+Troubleshooting encrypted files
+-------------------------------
 
-Bad signature error
-^^^^^^^^^^^^^^^^^^^
-
-In some rare cases it can happen that encrypted files cannot be downloaded
-and return a "500 Internal Server Error". If the Nextcloud log contains an error about
-"Bad Signature", then the following command can be used to repair affected files::
-
- occ encryption:fix-encrypted-version userId --path=/path/to/broken/file.txt
-
-Replace "userId" and the path accordingly.
-The command will do a test decryption for all files and automatically repair the ones with a signature error.
-
-.. _troubleshooting_encryption_key_not_found:
-
-Encryption key cannot be found
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-If the logs contain an error stating that the encryption key cannot be found, you can manually search the data directory for a folder that has the same name as the file name.
-For example if a file "example.md" cannot be decrypted, run::
-
-    find path/to/datadir -name example.md -type d
-
-Then check the results located in the ``files_encryption`` folder.
-If the key folder is in the wrong location, you can move it to the correct folder and try again.
-
-The ``data/files_encryption`` folder contains encryption keys for group folders and system-wide external storages
-while ``data/$userid/files_encryption`` contains the keys for specific user storage files.
-
-.. note::
-
-   This can happen if encryption was disabled at some point but the :ref:`occ command for decrypt-all<occ_disable_encryption_label>` was not run, and
-   then someone moved the files to another location. Since encryption was disabled, the keys did not get moved.
-
-Encryption key cannot be found with external storage or group folders
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-To resolve this issue, please run the following command::
-
-    sudo -E -u www-data php occ encryption:fix-key-location <user-id>
-
-This will attempt to recover keys that were not moved properly.
-
-If this doesn't resolve the problem, please refer to the section :ref:`Encryption key cannot be found<troubleshooting_encryption_key_not_found>` for a manual procedure.
-
-.. note::
-
-   There were two known issues where:
-
-   - moving files between an encrypted and non-encrypted storage like external storage or group folder `would not move the keys with the files <https://github.com/nextcloud/groupfolders/issues/1896>`_.
-   - putting files on system-wide external storage would store the keys in the `wrong location <https://github.com/nextcloud/server/pull/32690>`_.
+.. tip::
+  Please also refer to the troubleshooting section in the encryption chapter: :doc:`../configuration_files/encryption_configuration`.
 
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