I started back up, it just keeps running and running and never completes. The only info is logs is “Testing of TarGz was finished successfully”
It is possible that your hosting provider does not give you enough access permissions to complete backup process.
For an appropriate backup process, web server Apache or Nginx must have access to files and folders like your FTP/SSH user.
Permissions for all folders must be 755.
Permissions for all files must be 644.
We’d recommend to contact your hosting provider and ask them to provide you with proper hosting configurations.