Super Cleaner funktioniert nicht

No need to any app to restore backup file. - Easily transfer contacts between devices using just email client. - Copy backup file to your computer via USB cable feature.  IMPORTANT NOTE: After sending backup file (*. vcf) to yourself, please check your inbox if message arrived and contains attachment (backup file).  Super Cleaner - Backup Contact is the easiest way to backup and restore your contacts all from your phone without needing a computer or synchronization.  All contacts can then easily be restored any time by simply opening . vcf file in your mailbox. - Offline Backup.  You can backup all your contacts with a single touch and send yourself as a . vcf attachment via email.  Just email the backup file to yourself. - Your adress book is secure and safe.  Try with another mail account if possible, to send your backup file.  Sometimes email providers block attachments if attachment size is too large.  We don't access or store your contacts. - Easy restore.  No need to sync to any server.  Or copy backup file (on SD card) to your computer via USB cable.