This error message usually means you are actioning a process with missing/incorrect details or a folder/record is not being recognsied.
Opening the desktop application:
Object reference not set to an instance of an object when opening the application means that a folder in the background of the computer is not being recognised.
Go to the computer C drive, then click on the [Program Data] folder. Then select [Isolated Storage] and delete the top folder.
Please Note: If you cannot see the Program Data folder, click on [View] in the top left and to the top right click on the [Hidden Files] tick box.
Lodging BAS/TFN/PAYG/TPAR via SBR:
Object reference not set to an instance of an object when lodging information via SBR is due to a selection not been made before continuing.
Ensure when you are on the SBR settings screen that you have selected a [Lodger Type] and [Credential Type]. Also ensure your [Credentials] (MyGovID) in the Credentials drop down box have been selected.
Object reference not set to an instance of an object within the Invoice Manager section means that you have a setting switched on that is not in use.
Click on [Tools] and select [Options]. Go to [Mobile Device Connection] and remove any details in this tab.
Object reference not set to an instance of an object when you are clicking on pay Single Employee can mean that they have a duplicate custom rate set up.
Highlight the employees name which is giving you the error, select [Modify Employee] and go to the [Pay Details] tab.
Down the bottom click on the [Custom Rate] tab and delete the duplicated rate.