Encryption not ready: multikeydecrypt with share key failed

Hi!
I moved 12 GB data from a non-encrypted uptodate NC14 on a shared server onto my encrypted virgin uptodate NCP14 running in my home network. Everthing fine. I deselected all folders in my NCP14 Desktop Clients propertie window in order to save space on my laptop. Now I can’t can’t download the files anymore );
The log says: “Fatal webdav Sabre\DAV\Exception\ServiceUnavailable: Encryption not ready: multikeydecrypt with share key failed:error:04065072:rsa routines:rsa_ossl_private_decrypt:padding check failed”
I cannot understand anything. There was never a password regarding the encryption app, I didn’t enter one nor saved one. In the meanwhile I deactivited any app, the ecryption app, too, reactivated this one again - no help. If I download via the webinterface 6 kb folder do download - so empty ones. The client shows the above mentioned errors.

Does anybody have a hint, what to do?

The output of your Nextcloud log in Admin > Logging:

Fatal	webdav	Sabre\DAV\Exception\ServiceUnavailable: Encryption not ready: multikeydecrypt with share key failed:error:04065072:rsa routines:rsa_ossl_private_decrypt:padding check failed

    /var/www/nextcloud/apps/dav/lib/Connector/Sabre/File.php - line 349:

    OCA\DAV\Connector\Sabre\File->convertToSabreException(OCA\Encrypti ... {})

    /var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php - line 88:

    OCA\DAV\Connector\Sabre\File->get()

    Sabre\DAV\CorePlugin->httpGet(Sabre\HTTP\R ... "}, Sabre\HTTP\Response {})

    /var/www/nextcloud/3rdparty/sabre/event/lib/EventEmitterTrait.php - line 105:

    call_user_func_array([ Sabre\DAV\ ... "], [ Sabre\HTTP ... }])

    /var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php - line 479:

    Sabre\Event\EventEmitter->emit("method:GET", [ Sabre\HTTP ... }])

    /var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php - line 254:

    Sabre\DAV\Server->invokeMethod(Sabre\HTTP\R ... "}, Sabre\HTTP\Response {})

    /var/www/nextcloud/apps/dav/lib/Server.php - line 293:

    Sabre\DAV\Server->exec()

    /var/www/nextcloud/apps/dav/appinfo/v2/remote.php - line 35:

    OCA\DAV\Server->exec()

    /var/www/nextcloud/remote.php - line 163:

    require_once("/var/www/ne ... p")

Eingefasst vonOCA\Encryption\Exceptions\MultiKeyDecryptException: multikeydecrypt with share key failed:error:04065072:rsa routines:rsa_ossl_private_decrypt:padding check failed

    /var/www/nextcloud/apps/encryption/lib/KeyManager.php - line 447:

    OCA\Encryption\Crypto\Crypt->multiKeyDecrypt(null, null, "-----BEGIN ... n")

    /var/www/nextcloud/apps/encryption/lib/Crypto/Encryption.php - line 201:

    OCA\Encryption\KeyManager->getFileKey("/ncp/files/ ... l", "master_03cb16a2")

    /var/www/nextcloud/lib/private/Files/Stream/Encryption.php - line 266:

    OCA\Encryption\Crypto\Encryption->begin("/ncp/files/ ... l", "ncp", "r", { oc_encrypt ... "}, [])

    OC\Files\Stream\Encryption->stream_open("ocencryption://", "r", 0, null)

    /var/www/nextcloud/lib/private/Files/Stream/Encryption.php - line 204:

    fopen("ocencryption://", "r", false, null)

    /var/www/nextcloud/lib/private/Files/Stream/Encryption.php - line 184:

    OC\Files\Stream\Encryption::wrapSource(null, null, "ocencryption", "OC\\Files\\Stream\\Encryption", "r")

    /var/www/nextcloud/lib/private/Files/Storage/Wrapper/Encryption.php - line 468:

    OC\Files\Stream\Encryption::wrap(null, "files/_INES ... l", "/ncp/files/ ... l", { oc_encrypt ... "}, "ncp", OCA\Encrypti ... {}, OC\Files\Storage\Home {}, OC\Files\Sto ... l}, OC\Encryption\Util {}, OC\Encryption\File {}, "r", 9148, 645, 8192, true)

    /var/www/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php - line 298:

    OC\Files\Storage\Wrapper\Encryption->fopen("files/_INES ... l", "r")

    /var/www/nextcloud/lib/private/Files/View.php - line 1144:

    OC\Files\Storage\Wrapper\Wrapper->fopen("files/_INES ... l", "r")

    /var/www/nextcloud/lib/private/Files/View.php - line 986:

    OC\Files\View->basicOperation("fopen", "/_INES/SM-G ... l", [ "read"], "r")

    /var/www/nextcloud/apps/dav/lib/Connector/Sabre/File.php - line 347:

    OC\Files\View->fopen("_INES/SM-G8 ... l", "r")

    /var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php - line 88:

    OCA\DAV\Connector\Sabre\File->get()

    Sabre\DAV\CorePlugin->httpGet(Sabre\HTTP\R ... "}, Sabre\HTTP\Response {})

    /var/www/nextcloud/3rdparty/sabre/event/lib/EventEmitterTrait.php - line 105:

    call_user_func_array([ Sabre\DAV\ ... "], [ Sabre\HTTP ... }])

    /var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php - line 479:

    Sabre\Event\EventEmitter->emit("method:GET", [ Sabre\HTTP ... }])

    /var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php - line 254:

    Sabre\DAV\Server->invokeMethod(Sabre\HTTP\R ... "}, Sabre\HTTP\Response {})

    /var/www/nextcloud/apps/dav/lib/Server.php - line 293:

    Sabre\DAV\Server->exec()

    /var/www/nextcloud/apps/dav/appinfo/v2/remote.php - line 35:

    OCA\DAV\Server->exec()

    /var/www/nextcloud/remote.php - line 163:

    require_once("/var/www/ne ... p")