Error when ipopt returns an unknown status

[tmigot]

See this problem from the rank_deficient.jl file

using ADNLPModels, CUTEst, NLPModels, NLPModelsIpopt, Test, LinearAlgebra
#This package
using FletcherPenaltyNLPSolver
using Pkg; Pkg.update()
@testset "Rank-deficient HS61" begin
  nlp = ADNLPModel(
    x -> 4 * x[1]^2 + 2 * x[2]^2 + 2 * x[3]^2 - 33 * x[1] + 16 * x[2] - 24 * x[3],
    zeros(3),
    x -> [3 * x[1] - 2 * x[2]^2 - 7; 4 * x[1] - x[3]^2 - 11],
    zeros(2),
    zeros(2),
  )

stats = fps_solve(
           nlp,
           nlp.meta.x0,
           #σ_0 = 1e3,
           #ρ_0 = 1e3,
           hessian_approx = Val(2), #error with hessian_approx = 1
         )
[ Info:   iter             step      f(x)    ‖c(x)‖      ‖∇L‖         σ         ρ         δ             stat         η       ‖λ‖  
[ Info:      0             Init       NaN   1.1e+01   3.3e+01   1.0e+00   1.0e+00   0.0e+00          Initial   0.0e+00  1.4e-309
[ Info:      0            Optml  -4.8e+00   3.9e+00   1.1e+01   1.0e+00   1.0e+00   0.0e+00       SubOptimal   0.0e+00   5.7e+00
[ Info:      1                D  -4.8e+00   3.9e+00       NaN   2.0e+00   2.0e+00   0.0e+00       SubOptimal   0.0e+00   5.7e+00
┌ Warning: Error in StoppingInterface statuses: return status is unknown
└ @ FletcherPenaltyNLPSolver ~/.julia/dev/FletcherPenaltyNLPSolver/src/StoppingInterfacemod.jl:142
stats.solver_specific = Dict{Symbol, Any}(:real_time => 0.026745080947875977, :internal_msg => :Restoration_Failed)
┌ Warning: Exception of unexpected failure: [:Unknown]
└ @ FletcherPenaltyNLPSolver ~/.julia/dev/FletcherPenaltyNLPSolver/src/algo.jl:104
"Execution stats: unknown"