How to use text datatype (ACB) with classes and representation?

Hello, 

I am trying to use a text data type in a class/representation, but I keep getting the following error message when I run my API:

{"$diagnoses":[{"$severity":"error", "$message": "X3 engine error: [Microsoft][SQL Server Native Client 11.0]Invalid Descriptor Index : SQL Server Error","$stackTrace": "X3 engine error: [Microsoft][SQL Server Native Client 11.0]Invalid Descriptor Index : SQL Server Error\[email protected]/ASYRQRY$adx(177) : \[email protected]/ASYRQRY$adx(16):ASYRQRY.HANDLER_GET\[email protected]/ASYRMAIN$adx(564):ASYRMAIN.MANAGE_REQUEST\[email protected]/ASYRMAIN$adx(159):(No Label)\n"}]}


I think I am messing up on the lob table part on the classes. What exactly is the lob table, and lob field under the properties tab?

Thanks!