Assertion failed: !NumFree.GetValue()

my game has crash with message this (Error: Assertion failed: !NumFree.GetValue() [File:Runtime\Core\Public\Containers/LockFreeFixedSizeAllocator.h] [Line: 245])

but I don’t know reason and how fix it. someone tell me how can fix this. help me ~~

this is crash mini dump’s call stack

STACK_TEXT:
KERNELBASE!RaiseException+0x69 AWVR2!FWindowsErrorOutputDevice::Serialize+0x176 AWVR2!FOutputDevice::LogfImpl+0x117 AWVR2!FDebug::AssertFailed+0x178 AWVR2!?ExecuteIfSafe@?$TBaseFunctorDelegateInstance@$$A6AXXZV@@$$V@@UEBA_NXZ+0x10 AWVR2!?Broadcast@?$TBaseMulticastDelegate@X$$V@@QEBAXXZ+0xca AWVR2!FMemory::Trim+0x3be AWVR2!CollectGarbageInternal+0xbe0 AWVR2!TryCollectGarbage+0x9c AWVR2!UEngine::PerformGarbageCollectionAndCleanupActors+0x20 AWVR2!UEngine::ConditionalCollectGarbage+0x3bf AWVR2!UWorld::Tick+0x375c AWVR2!UGameEngine::Tick+0xbd9 AWVR2!FEngineLoop::Tick+0x2cb9 AWVR2!GuardedMain+0x32c AWVR2!GuardedMainWrapper+0x1a AWVR2!WinMain+0x125 AWVR2!__scrt_common_main_seh+0x106 kernel32!BaseThreadInitThunk+0x14 ntdll!RtlUserThreadStart+0x21