TypeError: string indices must be integers, not 'str'

[bimax]

I am trying to make a backup for my grafana and using docker-grafana-backup-tool:1.4.2 image for my grafana running in kubernetes rom helmchart 8.13.1 but I ma getting this error after 3 minutes of running through the follow error which looks like a code problem.

found 2 versions for dashboard 422 Errors
Traceback (most recent call last):
  File "/usr/bin/grafana-backup", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/usr/lib/python3.11/site-packages/grafana_backup/cli.py", line 52, in main
    save(args, settings)
  File "/usr/lib/python3.11/site-packages/grafana_backup/save.py", line 74, in main
    backup_functions[backup_function](args, settings)
  File "/usr/lib/python3.11/site-packages/grafana_backup/save_dashboard_versions.py", line 24, in main
    save_dashboard_versions(folder_path, log_file, grafana_url, http_get_headers, verify_ssl, client_cert, debug, pretty_print, uid_support)
  File "/usr/lib/python3.11/site-packages/grafana_backup/save_dashboard_versions.py", line 38, in save_dashboard_versions
    get_versions_and_save(dashboards, folder_path, log_file, grafana_url, http_get_headers, verify_ssl, client_cert, debug, pretty_print, uid_support)
  File "/usr/lib/python3.11/site-packages/grafana_backup/save_dashboard_versions.py", line 52, in get_versions_and_save
    get_individual_versions(content, board_folder_path, log_file, grafana_url, http_get_headers, verify_ssl, client_cert, debug, pretty_print)
  File "/usr/lib/python3.11/site-packages/grafana_backup/save_dashboard_versions.py", line 60, in get_individual_versions
    (status, content) = get_version(version['dashboardId'], version['version'], grafana_url, http_get_headers, verify_ssl, client_cert, debug)
                                    ~~~~~~~^^^^^^^^^^^^^^^
TypeError: string indices must be integers, not 'str'