Not enough input arguments. See ODE23s. ODE23S does not constrain solution to be non-negative.\n Option ''NonNegative'' will be ignored. ODE23S cannot solve problems with non-constant mass matrices. Use one of the other solvers of the ODE Suite. ODE23S assumes MassSingular is ''no''. See ODE15S or ODE23T. MassSingular cannot be ''yes'' for this solver. See ODE15S or ODE23T. Failure at t={0}. Unable to meet integration tolerances without reducing the step size below the smallest value allowed ({1}) at time t.