Script fails with error "failure: item with this name already exists"

[toglader]

I'm running the script in a hAP AC and for some reason it fails always:

[xxx@MyHome hAP AC] > /system/script run BackupAndUpdate  
            channel: stable                  
  installed-version: 7.22.2                  
     latest-version: 7.22.3                  
             status: New version is available
Saving system configuration
Configuration backup saved

failure: item with this name already exists
[xxx@MyHome hAP AC] > 

Config:

#----------MODIFY THIS SECTION AS NEEDED----------------------------------------
## Notification e-mail
## (Make sure you have configurated Email settings in Tools -> Email)
:local emailAddress "xxx@yyy.com";

## Script mode, possible values: backup, osupdate, osnotify.
# backup    -   Only backup will be performed. (default value, if none provided)
#
# osupdate  -   The script will install a new RouterOS version if it is available.
#               It will also create backups before and after update process (it does not matter what value `forceBackup` is set to)
#               Email will be sent only if a new RouterOS version is available.
#               Change parameter `forceBackup` if you need the script to create backups every time when it runs (even when no updates were found).
#
# osnotify  -   The script will send email notifications only (without backups) if a new RouterOS update is available.
#               Change parameter `forceBackup` if you need the script to create backups every time when it runs.
:local scriptMode "osupdate";

## Additional parameter if you set `scriptMode` to `osupdate` or `osnotify`
# Set `true` if you want the script to perform backup every time it's fired, whatever script mode is set.
:local forceBackup false;

## Backup encryption password, no encryption if no password.
:local backupPassword "xxxxxx"

## If true, passwords will be included in exported config.
:local sensitiveDataInConfig true;

## Update channel. Possible values: stable, long-term, testing, development
:local updateChannel "stable";

## Installs only patch versions of RouterOS updates.
## Works only if you set scriptMode to "osupdate"
## Means that new update will be installed only if MAJOR and MINOR version numbers remained the same as currently installed RouterOS.
## Example: v6.43.6 => major.minor.PATCH
## Script will send information if new version is greater than just patch.
:local installOnlyPatchUpdates false;

## If true, device public IP address information will be included into the email message
:local detectPublicIpAddress true;

## Allow anonymous statistics collection. (script mode, device model, OS version)
:local allowAnonymousStatisticsCollection false;

[beeyev]

It seems like you are using outdated script version, install the last one:
https://github.com/beeyev/Mikrotik-RouterOS-automatic-backup-and-update/blob/master/BackupAndUpdate.rsc