Error with Catalyst.jl bifurcation diagram tutorial

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6

All in all:

DO = DeflationOperator( 2,      # Algorithm parameter required when using deflated continuation, see BifurcationKit documentation.
                        dot,    # Algorithm parameter required when using deflated continuation, see BifurcationKit documentation.
                        1.,     # Algorithm parameter required when using deflated continuation, see BifurcationKit documentation.
                        [fill(0.,length(rn.states))]); # Guess(es) of the fixed point for the initial parameter set. Do not need to be exact.

params_input = setindex!(copy(params),p_span[1],p_idx)                                # The input parameter values have to start at the first index of our parameter span.
branches, = continuation(F, J, params_input, (@lens _[p_idx]), opts , DO,             # Gives our input.
    verbosity = 0, plot=false,                                                    # We do not want to display, or plot, intermediary results.
    recordFromSolution = (x, p) -> x[plot_var_idx],                                   # How we wish to print the output in the diagram. Here we simply want the value of the target varriable.
    perturbSolution = (x,p,id) -> (x  .+ 0.8 .* rand(length(x))),                     # Parameter for the continuation method, see BifurcationKit documentation.
    callbackN = BifurcationKit.cbMaxNorm(1e7),  # Parameter for the continuation method, see BifurcationKit documentation.
)

plot(branches...)
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