can't connect the plugin to solidworks

[Idok91]

when i open solidworks an exception thrown:
System.Reflection.ReflectionTypeLoadException: 'Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.'
it comes from this line:
ass.GetTypes().Where(p => type.IsAssignableFrom(p) && p.IsClass && !p.IsAbstract).ToList().ForEach(p =>
{
// Create SolidDna plugin class instance
var inter = Activator.CreateInstance(p) as ISolidPlugIn;
assemblies.Add(inter);
});

thank you in advance for helping!