I have no idea what this means…
I started a new server PC so had to reinstall SQL. All SQL things work well, have followed all tutorials to check correct installation with firewall rules and I can connect to the database easily with either SMMS or UDL template.
This error came in when I tried to upload the old Database Backup.
I then uninstalled Sambapos V5 and tried the basic setup but it reverts back to this every time …