corrupted database

System.IO.IOException: database disk image is malformed —> System.Data.SQLite.SQLiteException: database disk image is malformed
   at System.Data.SQLite.SQLiteBlob.Read(Byte[] buffer, Int32 count, Int32 offset)
   at MailClient.Storage.Data.BlobStream.Read(Byte[] buffer, Int32 offset, Int32 count)
   — End of inner exception stack trace —
   at MailClient.Storage.Data.BlobStream.Read(Byte[] buffer, Int32 offset, Int32 count)
   at MailClient.Streams.StreamHelper.CopyStream(Stream inputStream, Stream outputStream, Nullable`1 cancellationToken, ProgressReporter reporter)
   at MailClient.Storage.Data.DatabaseCopyTool.CopyContents(Table table, Boolean sortDesc)
   at MailClient.Storage.Data.DatabaseCopyTool.CopyTableData(Table table)
   at MailClient.Storage.Data.DatabaseCopyTool.CopyInternal(String specificTable, Boolean copyIndexesViewsAndTriggers)
   at DbRepair.CorruptionChecker.CheckCorruption(RepairOptions repairOptions, CancellationToken token)
   at DbRepair.CheckingProcess.Check(CancellationToken token)
Data:
Table: LocalMailContents
databaseFile: 5f784fe0-59ff-41f6-a00a-b2f14f03276e\22ab3a3b-3b07-4af6-b65f-16f7cf6082cc\mail_data.dat

I am using Version:  7.1.31849.0