Issue with dynare

Hi, I don’t know why I have many errors. Please help me
I need to change the da equation to: da(+1) = rhoda + eps_a
and the natural rate equation has to be: i
=(da(+1)-da) + (1-lambda)/(1+phi)*tau
model.mod (2.1 KB)

It needs to be

    da = rho*da(-1) + eps_a;