Missing file helper_functions.sh

Hello everyone!
We are trying to deploy a Scalable WordPress using Azure VM as per doc:
https://azuremarketplace.microsoft.com/en-us/marketplace/apps/microsoft.wordpressvm?tab=overview

however when it reaches the point in which it installs a VM extension, the extension fails with message
{
"status": "Failed",
"error": {
"code": "VMExtensionProvisioningError",
"message": "VM has reported a failure when processing extension 'setup_controller' (publisher 'Microsoft.Azure.Extensions' and type 'CustomScript'). Error message: 'Enable failed: processing file downloads failed: failed to download file[1]: failed to download response and write to file: /var/lib/waagent/custom-script/download/0/helper_functions.sh: CustomScript failed to download the file from raw.githubusercontent.com because it does not exist. Please create the blob and try again, the response code and message returned were: \"404 Not Found\"'. More information on troubleshooting is available at https://aka.ms/VMExtensionCSELinuxTroubleshoot. "
}
}

Indeed if we try to look up for https://raw.githubusercontent.com/Azure/solution-center/main/solutions/wordpress-azure-vm-v1/scripts/helper_functions.sh

we get a Not found, I can confirm it is no longer there. Can we have the file added back or pointing to the new file required?