Game crashing on load

Version: 377620, IsEditor: No, IsPerforceBuild: No, BuildConfiguration: Shipping, Launcher: Steam, NetMode: Standalone, IsUsingMods: Yes, IsSaveGameEdited: No Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x000000000000000d FactoryGameSteam_CoreUObject_Win64_Shipping!UE::GC::TReferenceBatcher<UE::GC::FMutableReference,UE::GC::FResolvedMutableReference,UE::GC::TReachabilityProcessor<5> >::DrainValidatedFull() [C:\BuildAgent\work\b731a33f2a691e17\UE4\Engine\Source\Runtime\CoreUObject\Private\UObject\GarbageCollection.cpp:1622] FactoryGameSteam_CoreUObject_Win64_Shipping!UE::GC::TReferenceBatcher<UE::GC::FMutableReference,UE::GC::FResolvedMutableReference,UE::GC::TReachabilityProcessor<5> >::DrainUnvalidatedFull() [C:\BuildAgent\work\b731a33f2a691e17\UE4\Engine\Source\Runtime\CoreUObject\Private\UObject\GarbageCollection.cpp:1621] FactoryGameSteam_CoreUObject_Win64_Shipping!UE::GC::TReferenceBatcher<UE::GC::FMutableReference,UE::GC::FResolvedMutableReference,UE::GC::TReachabilityProcessor<5> >::DrainArraysFull() [C:\BuildAgent\work\b731a33f2a691e17\UE4\Engine\Source\Runtime\CoreUObject\Private\UObject\GarbageCollection.cpp:1619] FactoryGameSteam_CoreUObject_Win64_Shipping!UE::GC::TFastReferenceCollector<UE::GC::TReachabilityProcessor<5>,UE::GC::TReachabilityCollector<5> >::ProcessObjectArray() [C:\BuildAgent\work\b731a33f2a691e17\UE4\Engine\Source\Runtime\CoreUObject\Public\UObject\FastReferenceCollector.h:689] FactoryGameSteam_CoreUObject_Win64_Shipping!CollectReferences<UE::GC::TReachabilityCollector<5>,UE::GC::TReachabilityProcessor<5> >'::3'::<lambda_1>::<lambda_invoker_cdecl>() [C:\BuildAgent\work\b731a33f2a691e17\UE4\Engine\Source\Runtime\CoreUObject\Public\UObject\FastReferenceCollector.h:853] FactoryGameSteam_CoreUObject_Win64_Shipping!UE::Tasks::Private::TExecutableTaskBase<UE::GC::ProcessAsync'::28'::<lambda_1>,void,void>::ExecuteTask() [C:\BuildAgent\work\b731a33f2a691e17\UE4\Engine\Source\Runtime\Core\Public\Tasks\TaskPrivate.h:704] FactoryGameSteam_CoreUObject_Win64_Shipping!UE::Tasks::Private::FTaskBase::TryExecuteTask() [C:\BuildAgent\work\b731a33f2a691e17\UE4\Engine\Source\Runtime\Core\Public\Tasks\TaskPrivate.h:439] FactoryGameSteam_CoreUObject_Win64_Shipping!LowLevelTasks::TTaskDelegate<LowLevelTasks::FTask * cdecl(bool),48>::TTaskDelegateImpl<LowLevelTasks::FTask::Init<UE::Tasks::Private::FTaskBase::Init'::2'::<lambda_1> >'::5'::<lambda_1>,0>::CallAndMove() [C:\BuildAgent\work\b731a33f2a691e17\UE4\Engine\Source\Runtime\Core\Public\Async\Fundamental\TaskDelegate.h:171] FactoryGameSteam_Core_Win64_Shipping!LowLevelTasks::FTask::ExecuteTask() [C:\BuildAgent\work\b731a33f2a691e17\UE4\Engine\Source\Runtime\Core\Public\Async\Fundamental\Task.h:627] FactoryGameSteam_Core_Win64_Shipping!LowLevelTasks::FScheduler::TryExecuteTaskFrom<LowLevelTasks::TLocalQueueRegistry<1024>::TLocalQueue,&LowLevelTasks::TLocalQueueRegistry<1024>::TLocalQueue::DequeueGlobal,0>() [C:\BuildAgent\work\b731a33f2a691e17\UE4\Engine\Source\Runtime\Core\Private\Async\Fundamental\Scheduler.cpp:349] FactoryGameSteam_Core_Win64_Shipping!LowLevelTasks::FScheduler::WorkerMain() [C:\BuildAgent\work\b731a33f2a691e17\UE4\Engine\Source\Runtime\Core\Private\Async\Fundamental\Scheduler.cpp:378] FactoryGameSteam_Core_Win64_Shipping!UE::Core::Private::Function::TFunctionRefCaller<LowLevelTasks::FScheduler::CreateWorker'::2'::<lambda_1>,void cdecl(void)>::Call() [C:\BuildAgent\work\b731a33f2a691e17\UE4\Engine\Source\Runtime\Core\Public\Templates\Function.h:480] FactoryGameSteam_Core_Win64_Shipping!FThreadImpl::Run() [C:\BuildAgent\work\b731a33f2a691e17\UE4\Engine\Source\Runtime\Core\Private\HAL\Thread.cpp:68] FactoryGameSteam_Core_Win64_Shipping!FRunnableThreadWin::Run() [C:\BuildAgent\work\b731a33f2a691e17\UE4\Engine\Source\Runtime\Core\Private\Windows\WindowsRunnableThread.cpp:149]