Not enough input arguments. See ODE23tb. ODE23TB assumes MassSingular is ''no''. See ODE15S or ODE23T. MassSingular cannot be ''yes'' for ODE23TB. See ODE15S or ODE23T. For linearly implicit systems, ODE23TB does not constrain the solution.\n Option ''NonNegative'' will be ignored. Failure at t={0}. Unable to meet integration tolerances without reducing the step size below the smallest value allowed ({1}) at time t.