No paths to backup configured on Windows Server 2012 and 2016

Our urbackup server OS ( Ubuntu ) got some journalling errors, so as an interim solution we brought up a new server to keep backups going whilst we repair our main server. Almost every client we add, Win10, Server2012, Server2016, gives us the “No paths to backup configured” error. We cannot find any logs to help us troubleshoot. These clients had been backing up for months with no problems and now I haven’t been able to get a backup for 4 days.

Server: Ubuntu, UrBackup 2.4.13
Clients: Windows 2.4.10

Anyone give me some ideas on where to look?

Thanks,
Rod