Getting the below error when I try to restore data from backup. Pls help.
 Copying archive to tmp directory...
    Unzipping archive, this may take a while...
    tar: meta.json: Not found in archive
    tar: Exiting with failure status due to previous errors
    No metadata file to extract.
    EXCEPTION: Migration version is missing from the filename.
    /var/www/discourse/lib/backup_restore/restorer.rb:226:in `extract_metadata'
    /var/www/discourse/lib/backup_restore/restorer.rb:54:in `run'
    script/discourse:136:in `restore'
    /var/www/discourse/vendor/bundle/ruby/2.5.0/gems/thor-0.19.4/lib/thor/command.rb:27:in `run'
    /var/www/discourse/vendor/bundle/ruby/2.5.0/gems/thor-0.19.4/lib/thor/invocation.rb:126:in `invoke_command'
    /var/www/discourse/vendor/bundle/ruby/2.5.0/gems/thor-0.19.4/lib/thor.rb:369:in `dispatch'
    /var/www/discourse/vendor/bundle/ruby/2.5.0/gems/thor-0.19.4/lib/thor/base.rb:444:in `start'
    script/discourse:277:in `<top (required)>'
    /usr/local/lib/ruby/gems/2.5.0/gems/bundler-1.17.1/lib/bundler/cli/exec.rb:74:in `load'
    /usr/local/lib/ruby/gems/2.5.0/gems/bundler-1.17.1/lib/bundler/cli/exec.rb:74:in `kernel_load'
    /usr/local/lib/ruby/gems/2.5.0/gems/bundler-1.17.1/lib/bundler/cli/exec.rb:28:in `run'
    /usr/local/lib/ruby/gems/2.5.0/gems/bundler-1.17.1/lib/bundler/cli.rb:463:in `exec'
    /usr/local/lib/ruby/gems/2.5.0/gems/bundler-1.17.1/lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
    /usr/local/lib/ruby/gems/2.5.0/gems/bundler-1.17.1/lib/bundler/vendor/thor/lib/thor/invocation.rb:126:in `invoke_command'
    /usr/local/lib/ruby/gems/2.5.0/gems/bundler-1.17.1/lib/bundler/vendor/thor/lib/thor.rb:387:in `dispatch'
    /usr/local/lib/ruby/gems/2.5.0/gems/bundler-1.17.1/lib/bundler/cli.rb:27:in `dispatch'
    /usr/local/lib/ruby/gems/2.5.0/gems/bundler-1.17.1/lib/bundler/vendor/thor/lib/thor/base.rb:466:in `start'
    /usr/local/lib/ruby/gems/2.5.0/gems/bundler-1.17.1/lib/bundler/cli.rb:18:in `start'
    /usr/local/lib/ruby/gems/2.5.0/gems/bundler-1.17.1/exe/bundle:30:in `block in <top (required)>'
    /usr/local/lib/ruby/gems/2.5.0/gems/bundler-1.17.1/lib/bundler/friendly_errors.rb:124:in `with_friendly_errors'
    /usr/local/lib/ruby/gems/2.5.0/gems/bundler-1.17.1/exe/bundle:22:in `<top (required)>'
    /usr/local/bin/bundle:23:in `load'
    /usr/local/bin/bundle:23:in `<main>'
    Trying to rollback...
    There was no need to rollback
    Cleaning stuff up...
    Removing tmp '/var/www/discourse/tmp/restores/default/2018-12-07-125822' directory...
    Unpausing sidekiq...
    Marking restore as finished...
    Notifying 'system' of the end of the restore...
    Finished!
    [FAILED]
    Restore done.