Of course! I think the simplest way would be for you would be to download the file uploaded in the linked post (below is a screenshot, not a link):
Then unzip it to %USERPROFILE%\Documents\SambaPOS5\Database Tasks
The path is important as that’s where SambaPOS will look for the file(s).
Go to Management → Settings → Database Tools
You should see Alter_Users_Table_Null_SevenShiftsId listed.
Select that row and click “Execute Task”. A backup will be generated and then you will be logged out.
