SuperValueConverters front end error

gistfile1.txt

2019-03-08 16:36:06,764 [P9180/D2/T15] ERROR Umbraco.Core.UmbracoApplicationBase - An unhandled exception occurred
System.NullReferenceException: Object reference not set to an instance of an object.
   at Umbraco.Core.Cache.HttpRequestCacheProvider.GetCacheItem(String cacheKey, Func`1 getCacheItem)
   at Umbraco.Web.PublishedCache.XmlPublishedCache.XmlPublishedContent.Get(XmlNode node, Boolean isPreviewing)
   at Umbraco.Web.PublishedCache.XmlPublishedCache.PublishedContentCache.GetById(UmbracoContext umbracoContext, Boolean preview, Int32 nodeId)
   at Umbraco.Web.PublishedCache.XmlPublishedCache.PublishedContentCache.DetermineIdByRoute(UmbracoContext umbracoContext, Boolean preview, String route, Boolean hideTopLevelNode)
   at Umbraco.Web.PublishedCache.XmlPublishedCache.PublishedContentCache.GetByRoute(UmbracoContext umbracoContext, Boolean preview, String route, Nullable`1 hideTopLevelNode)
   at Umbraco.Web.Routing.ContentFinderByNiceUrl.FindContent(PublishedContentRequest docreq, String route)
   at Umbraco.Web.Routing.ContentFinderByNiceUrl.TryFindContent(PublishedContentRequest docRequest)
   at Umbraco.Web.Routing.PublishedContentRequestEngine.<FindPublishedContent>b__17_0(IContentFinder finder)
   at System.Linq.Enumerable.Any[TSource](IEnumerable`1 source, Func`2 predicate)
   at Umbraco.Web.Routing.PublishedContentRequestEngine.FindPublishedContent()
   at Umbraco.Web.Routing.PublishedContentRequestEngine.FindPublishedContentAndTemplate()
   at Umbraco.Web.Routing.PublishedContentRequestEngine.PrepareRequest()
   at Umbraco.Web.UmbracoModule.ProcessRequest(HttpContextBase httpContext)
   at Umbraco.Web.UmbracoModule.<Init>b__12_3(Object sender, EventArgs e)
   at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

gistfile2.txt

Failed to build models.
Object reference not set to an instance of an object.

   at Our.Umbraco.SuperValueConverters.PreValues.PreValueMapper.ConvertToStringArray(String input, Char separator)
   at Our.Umbraco.SuperValueConverters.PreValues.PreValueMapper.Map[T](T model, IDictionary`2 preValues)
   at Our.Umbraco.SuperValueConverters.ValueConverters.MultiNodeTreePickerValueConverter.GetSettings(PublishedPropertyType propertyType)
   at Our.Umbraco.SuperValueConverters.ValueConverters.MultiNodeTreePickerValueConverter.GetPropertyValueType(PublishedPropertyType propertyType)
   at Umbraco.Core.Models.PublishedContent.PublishedPropertyType.InitializeConverters()
   at Umbraco.Core.Models.PublishedContent.PublishedPropertyType..ctor(PublishedContentType contentType, PropertyType propertyType)
   at Umbraco.Core.Models.PublishedContent.PublishedContentType.<.ctor>b__3_0(PropertyType x)
   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
   at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
   at Umbraco.Core.Models.PublishedContent.PublishedContentType..ctor(IContentTypeComposition contentType)
   at Umbraco.Core.Models.PublishedContent.PublishedContentType.CreatePublishedContentType(PublishedItemType itemType, String alias)
   at Umbraco.Core.Models.PublishedContent.PublishedContentType.<>c__DisplayClass25_0.<Get>b__0()
   at Umbraco.Core.Cache.CacheProviderExtensions.<>c__DisplayClass5_0`1.<GetCacheItem>b__0()
   at Umbraco.Core.Cache.StaticCacheProvider.<>c__DisplayClass11_0.<GetCacheItem>b__0(String key)
   at System.Collections.Concurrent.ConcurrentDictionary`2.GetOrAdd(TKey key, Func`2 valueFactory)
   at Umbraco.Core.Cache.StaticCacheProvider.GetCacheItem(String cacheKey, Func`1 getCacheItem)
   at Umbraco.Core.Cache.CacheProviderExtensions.GetCacheItem[T](ICacheProvider provider, String cacheKey, Func`1 getCacheItem)
   at Umbraco.Core.Models.PublishedContent.PublishedContentType.Get(PublishedItemType itemType, String alias)
   at Umbraco.ModelsBuilder.Umbraco.Application.GetTypes(PublishedItemType itemType, IContentTypeBase[] contentTypes) in D:\d\Zbu ModelsBuilder-7\Umbraco.ModelsBuilder\Umbraco\Application.cs:line 169
   at Umbraco.ModelsBuilder.Umbraco.Application.GetAllTypes() in D:\d\Zbu ModelsBuilder-7\Umbraco.ModelsBuilder\Umbraco\Application.cs:line 54
   at Umbraco.ModelsBuilder.Umbraco.ModelsBuilderBackOfficeController.GenerateModels(String modelsDirectory, String bin) in D:\d\Zbu ModelsBuilder-7\Umbraco.ModelsBuilder\Umbraco\ModelsBuilderBackOfficeController.cs:line 104
   at Umbraco.ModelsBuilder.Umbraco.ModelsBuilderBackOfficeController.BuildModels() in D:\d\Zbu ModelsBuilder-7\Umbraco.ModelsBuilder\Umbraco\ModelsBuilderBackOfficeController.cs:line 35