Server-related causes:

  • Not enough disk space
  • Server runs out of memory
  • Server has been placed behind a firewall and cannot be accessed
  • The backup is taking too long to be created and eventually times out
  • Trying to back up a non-existent directory or one that has been deleted
  • Trying to back up a directory which you don’t have permissions to read
  • Invalid/changed server credentials (host, port, username, ssh key, or password)

Storage-related causes:

  • A problem uploading backup to remote storage
  • Invalid/changed storage credentials (key, secret, region, or bucket)

Database-related causes:

  • Trying to back up an empty database
  • Invalid/changed database credentials (db host, db port, db username, db password, or db name)

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