XSuperObject error parsing

[gresaggr]

Hello.
in jSonData text from attach file

var X: ISuperObject; jSonData: string; begin if jSonData <> '' then try X := SO(jSonData); except print('jSonData: ' + jSonData); result := 'PARS ERROR'; exit; end;

and get error on string "... \u0438 60":"40\n\u0417..."
How can I fix it?

test.zip