Controller: RocSearchCustomSTS
Action: Index
Exception: NullReferenceException
Object reference not set to an instance of an object.

Stack Trace:
at Roc.Sitefinity.SDK.Services.RocSearchService.GetSearchResults(Boolean forceRefresh) in F:\agent2018\_work\892\s\Roc.Sitefinity\Roc.Base\Roc.Sitefinity.SDK\Services\RocSearchService.cs:line 235
at Roc.Sitefinity.Widgets.RocSearch.Services.RocSearchSTSService.GetSearchResults(Boolean isAjax) in F:\agent2018\_work\892\s\Roc.Sitefinity\Roc.Base\Roc.Sitefinity.Widgets.RocSearch\Services\RocSearchSTSService.cs:line 33
at Roc.Sitefinity.Widgets.RocSearch.Mvc.Controllers.RocSearchCustomSTSController.Index() in F:\agent2018\_work\892\s\Roc.Sitefinity\Roc.Base\Roc.Sitefinity.Widgets.RocSearch\Mvc\Controllers\RocSearchCustomSTSController.cs:line 24
at lambda_method(Closure , ControllerBase , Object[] )
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass24_0.b__0()
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)