Hey there,
i recently reactivated my Duplicati Backup after migrating the backupfiles top an other Disk and changing from SFTP to local method.
Due to a corrupted Database I had to rebuilt it after the migration. I can successfully recover files from backup using both the “direct path to” method and using my local configuration.
I tried verifying but ran into this Error:
"2026-02-17 00:33:38 +01 - [Error-Duplicati.Library.Main.Controller-FailedOperation]: The operation Test has failed\nCryptographicException: Fehler beim Entschlüsseln der Daten (ungültige Passphrase?): Content has been tampered with, do not trust content: invalid padding length"
The password is correct, since i can open the database using it when recovering files.
When running backup, i get the same error, but evidently the backup runs through: All files (as far as I know) are there and can be restored.
"2026-02-17 00:40:47 +01 - [Error-Duplicati.Library.Main.Operation.BackupHandler-FatalError]: Fatal error\nCryptographicException: Fehler beim Entschlüsseln der Daten (ungültige Passphrase?): Content has been tampered with, do not trust content: invalid padding length"
BUT: In the main menu, it says last backup one year ago (when I actually made my last backup before this using duplicati).
Backup Log:
{ "DeletedFiles": 25, "DeletedFolders": 0, "ModifiedFiles": 27, "ExaminedFiles": 12165, "OpenedFiles": 3760, "AddedFiles": 1848, "SizeOfModifiedFiles": 65421514, "SizeOfAddedFiles": 8334739726, "SizeOfExaminedFiles": 54909965521, "SizeOfOpenedFiles": 14651875423, "NotProcessedFiles": 0, "AddedFolders": 106, "TooLargeFiles": 0, "FilesWithError": 0, "TimestampChangedFiles": 1885, "ModifiedFolders": 160, "ModifiedSymlinks": 0, "AddedSymlinks": 0, "DeletedSymlinks": 0, "PartialBackup": false, "Dryrun": false, "MainOperation": "Backup", "CompactResults": null, "VacuumResults": null, "DeleteResults": null, "RepairResults": null, "TestResults": { "MainOperation": "Test", "VerificationsActualLength": 0, "Verifications": [], "ParsedResult": "Success", "Interrupted": false, "Version": "2.2.0.3 (2.2.0.3_stable_2026-01-06)", "EndTime": "0001-01-01T00:00:00", "BeginTime": "2026-02-16T23:39:54.0554262Z", "Duration": "00:00:00", "MessagesActualLength": 0, "WarningsActualLength": 0, "ErrorsActualLength": 0, "Messages": null, "Warnings": null, "Errors": null, "BackendStatistics": { "RemoteCalls": 219, "BytesUploaded": 5345196493, "BytesDownloaded": 189579264, "FilesUploaded": 209, "FilesDownloaded": 6, "FilesDeleted": 0, "FoldersCreated": 0, "RetryAttempts": 5, "UnknownFileSize": 0, "UnknownFileCount": 0, "KnownFileCount": 2060, "KnownFileSize": 52856668584, "KnownFilesets": 16, "LastBackupDate": "2026-02-17T00:37:27+01:00", "BackupListCount": 16, "TotalQuotaSpace": 502925484032, "FreeQuotaSpace": 274943979520, "AssignedQuotaSpace": -1, "ReportedQuotaError": false, "ReportedQuotaWarning": false, "MainOperation": "Backup", "ParsedResult": "Success", "Interrupted": false, "Version": "2.2.0.3 (2.2.0.3_stable_2026-01-06)", "EndTime": "0001-01-01T00:00:00", "BeginTime": "2026-02-16T23:37:27.3178805Z", "Duration": "00:00:00", "MessagesActualLength": 0, "WarningsActualLength": 0, "ErrorsActualLength": 0, "Messages": null, "Warnings": null, "Errors": null } }, "ParsedResult": "Fatal", "Interrupted": false, "Version": "2.2.0.3 (2.2.0.3_stable_2026-01-06)", "EndTime": "2026-02-16T23:40:47.5364757Z", "BeginTime": "2026-02-16T23:37:27.3178689Z", "Duration": "00:03:20.2186068", "MessagesActualLength": 447, "WarningsActualLength": 0, "ErrorsActualLength": 2, "Messages": [ "2026-02-17 00:37:27 +01 - [Information-Duplicati.Library.Main.Controller-StartingOperation]: Die Operation Backup wurde gestartet", "2026-02-17 00:37:31 +01 - [Information-Duplicati.Library.Main.BasicResults-BackendEvent]: Backend event: List - Started: ()", "2026-02-17 00:37:31 +01 - [Information-Duplicati.Library.Main.BasicResults-BackendEvent]: Backend event: List - Completed: (1,808 KB)", "2026-02-17 00:37:31 +01 - [Information-Duplicati.Library.Main.BasicResults-BackendEvent]: Backend event: QuotaInfo - Started: ()", "2026-02-17 00:37:31 +01 - [Information-Duplicati.Library.Main.Operation.Backup.RecreateMissingIndexFiles-RecreateMissingIndexFile]: Re-creating missing index file for duplicati-b5af4d9d103aa423794ca3b98ac167a04.dblock.zip.aes", "2026-02-17 00:37:31 +01 - [Information-Duplicati.Library.Main.Operation.Backup.RecreateMissingIndexFiles-RecreateMissingIndexFile]: Re-creating missing index file for duplicati-bba4cf0e7777f40c99e8bf48c9c8aa556.dblock.zip.aes", "2026-02-17 00:37:32 +01 - [Information-Duplicati.Library.Main.Operation.Backup.RecreateMissingIndexFiles-RecreateMissingIndexFile]: Re-creating missing index file for duplicati-bdc3c463c20ae46199e0c0fd304115bed.dblock.zip.aes", "2026-02-17 00:37:32 +01 - [Information-Duplicati.Library.Main.Operation.Backup.RecreateMissingIndexFiles-RecreateMissingIndexFile]: Re-creating missing index file for duplicati-b33d05f2e72bd4d3aa7e8f8f763589d83.dblock.zip.aes", "2026-02-17 00:37:32 +01 - [Information-Duplicati.Library.Main.BasicResults-BackendEvent]: Backend event: Put - Started: duplicati-ie29abc65e136431baf93644fde04d0a4.dindex.zip.aes (845 Bytes)", "2026-02-17 00:37:32 +01 - [Information-Duplicati.Library.Main.BasicResults-BackendEvent]: Backend event: Put - Started: duplicati-ief0cf07e8fdd419bb1848456fcb55334.dindex.zip.aes (845 Bytes)", "2026-02-17 00:37:32 +01 - [Information-Duplicati.Library.Main.BasicResults-BackendEvent]: Backend event: Put - Started: duplicati-ie8b2c6592cd2477e9e337fab8362f248.dindex.zip.aes (845 Bytes)", "2026-02-17 00:37:32 +01 - [Information-Duplicati.Library.Main.BasicResults-BackendEvent]: Backend event: Put - Completed: duplicati-ief0cf07e8fdd419bb1848456fcb55334.dindex.zip.aes (845 Bytes)", "2026-02-17 00:37:32 +01 - [Information-Duplicati.Library.Main.BasicResults-BackendEvent]: Backend event: Put - Completed: duplicati-ie8b2c6592cd2477e9e337fab8362f248.dindex.zip.aes (845 Bytes)", "2026-02-17 00:37:32 +01 - [Information-Duplicati.Library.Main.BasicResults-BackendEvent]: Backend event: Put - Completed: duplicati-ie29abc65e136431baf93644fde04d0a4.dindex.zip.aes (845 Bytes)", "2026-02-17 00:37:32 +01 - [Information-Duplicati.Library.Main.BasicResults-BackendEvent]: Backend event: Put - Started: duplicati-i47584a59301748cfbfc13f16c3bee8cc.dindex.zip.aes (845 Bytes)", "2026-02-17 00:37:32 +01 - [Information-Duplicati.Library.Main.BasicResults-BackendEvent]: Backend event: Put - Completed: duplicati-i47584a59301748cfbfc13f16c3bee8cc.dindex.zip.aes (845 Bytes)", "2026-02-17 00:37:40 +01 - [Information-Duplicati.Library.Main.BasicResults-BackendEvent]: Backend event: Put - Started: duplicati-b0577fddbe2eb4bb389d57eed14d9c9df.dblock.zip.aes (49,954 MB)", "2026-02-17 00:37:40 +01 - [Information-Duplicati.Library.Main.BasicResults-BackendEvent]: Backend event: Put - Started: duplicati-b45685233e2b442a19657e9e6e60829a4.dblock.zip.aes (50,028 MB)", "2026-02-17 00:37:40 +01 - [Information-Duplicati.Library.Main.BasicResults-BackendEvent]: Backend event: Put - Completed: duplicati-b0577fddbe2eb4bb389d57eed14d9c9df.dblock.zip.aes (49,954 MB)", "2026-02-17 00:37:40 +01 - [Information-Duplicati.Library.Main.BasicResults-BackendEvent]: Backend event: Put - Started: duplicati-b27991b41ebf849dc8520e09e66157dfc.dblock.zip.aes (49,998 MB)" ], "Warnings": [], "Errors": [ "2026-02-17 00:40:47 +01 - [Error-Duplicati.Library.Main.Operation.BackupHandler-FatalError]: Fatal error\nCryptographicException: Fehler beim Entschlüsseln der Daten (ungültige Passphrase?): Content has been tampered with, do not trust content: invalid padding length", "2026-02-17 00:40:47 +01 - [Error-Duplicati.Library.Main.Controller-FailedOperation]: The operation Backup has failed\nCryptographicException: Fehler beim Entschlüsseln der Daten (ungültige Passphrase?): Content has been tampered with, do not trust content: invalid padding length" ], "BackendStatistics": { "RemoteCalls": 219, "BytesUploaded": 5345196493, "BytesDownloaded": 189579264, "FilesUploaded": 209, "FilesDownloaded": 6, "FilesDeleted": 0, "FoldersCreated": 0, "RetryAttempts": 5, "UnknownFileSize": 0, "UnknownFileCount": 0, "KnownFileCount": 2060, "KnownFileSize": 52856668584, "KnownFilesets": 16, "LastBackupDate": "2026-02-17T00:37:27+01:00", "BackupListCount": 16, "TotalQuotaSpace": 502925484032, "FreeQuotaSpace": 274943979520, "AssignedQuotaSpace": -1, "ReportedQuotaError": false, "ReportedQuotaWarning": false, "MainOperation": "Backup", "ParsedResult": "Success", "Interrupted": false, "Version": "2.2.0.3 (2.2.0.3_stable_2026-01-06)", "EndTime": "0001-01-01T00:00:00", "BeginTime": "2026-02-16T23:37:27.3178805Z", "Duration": "00:00:00", "MessagesActualLength": 0, "WarningsActualLength": 0, "ErrorsActualLength": 0, "Messages": null, "Warnings": null, "Errors": null } }
What can I do?