Fixedcolumns error Uncaught TypeError: Cannot read properties of undefined (reading 'start')

I am trying to set the fixed columns using the fixedColumns().start() method. However when i call that method it throws the error Uncaught TypeError: Cannot read properties of undefined (reading 'start').

This is the code i am using

table.DataTable().fixedColumns().start(2);

I am able to set the columns when i initialize the datatable, however calling this function throws an error. Any help would be appreciated