Pkcs11Interop Xamarin.Mac crash

Hi.

I'm trying to create a Xamarin.Mac application using the Pkcs11Interop library. First I created the Cocoa app then created .NetStandart lib and imported the NuGet package Pkcs11Interop there.
But when I tried to use the library with the imported nuget package, I get an error:

Here is the code of the test library:
using System;
using Net.Pkcs11Interop.Common;
using Net.Pkcs11Interop.HighLevelAPI80;

namespace ReaderLib
{
    public class Initialize
    {
        public Initialize()
        {
            Pkcs11 pkcs11 = new Pkcs11("/usr/local/lib/libbeidpkcs11.dylib", AppType.MultiThreaded);
        }
    }
}

Code ViewController
using System;

using AppKit;
using Foundation;
using ReaderLib;

namespace IDReader
{
    public partial class ViewController : NSViewController
    {
        public ViewController(IntPtr handle) : base(handle)
        {
        }

        public override void ViewDidLoad()
        {
            base.ViewDidLoad();

            Initialize class1 = new Initialize();
        }

        public override NSObject RepresentedObject
        {
            get
            {
                return base.RepresentedObject;
            }
            set
            {
                base.RepresentedObject = value;
                // Update the view, if already loaded.
            }
        }
    }
}