Crash on startup

installed old UE4(1.13.2) on my Old(mid 2010) iMac because my Mac does not have metal graphics, but UE4 crashes every time on startup

Here is report :

MachineId:2CAE5419934AFA1E50BF329BC6FEC550
EpicAccountId:49a9c2c0a2e849e6990f6c1c868204ba

SEGV_NOOP at 0x0

SLSNewWindowWithOpaqueShape Address = 0x7fff6d14b4f1 (filename not found) [in SkyLight]
-[_NSCGSWindow initWithConnectionID:] Address = 0x7fff4942bdce (filename not found) [in AppKit]
+[NSCGSWindow(NSCGSWindowCreation) windowWithConnectionID:] Address = 0x7fff4942ad16 (filename not found) [in AppKit]
_NSCreateWindowWithOpaqueShape2 Address = 0x7fff48b29a75 (filename not found) [in AppKit]
-[NSWindow _commonAwake] Address = 0x7fff48b28763 (filename not found) [in AppKit]
-[NSWindow _commonInitFrame:styleMask:backing:defer:] Address = 0x7fff4896a048 (filename not found) [in AppKit]
-[NSWindow _initContent:styleMask:backing:defer:contentView:] Address = 0x7fff489687d5 (filename not found) [in AppKit]
-[NSWindow initWithContentRect:styleMask:backing:defer:] Address = 0x7fff4896828e (filename not found) [in AppKit]
invocation function for block in FMacPlatformSplash::Show() Address = 0x10769fa67 (filename not found) [in UE4Editor-Core.dylib]
invocation function for block in PerformBlockOnThread(FCocoaRunLoopSource&, void () block_pointer, NSArray*, NSString*, bool) Address = 0x107671a80 (filename not found) [in UE4Editor-Core.dylib]
FCocoaRunLoopSource::Process(__CFString const*) Address = 0x10763249c (filename not found) [in UE4Editor-Core.dylib]
-[FCocoaRunLoopSourceInfo perform] Address = 0x107631ec6 (filename not found) [in UE4Editor-Core.dylib]
CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION Address = 0x7fff4b3e6981 (filename not found) [in CoreFoundation]
__CFRunLoopDoSource0 Address = 0x7fff4b49ecac (filename not found) [in CoreFoundation]
__CFRunLoopDoSources0 Address = 0x7fff4b3c9930 (filename not found) [in CoreFoundation]
__CFRunLoopRun Address = 0x7fff4b3c8dad (filename not found) [in CoreFoundation]
CFRunLoopRunSpecific Address = 0x7fff4b3c8607 (filename not found) [in CoreFoundation]
RunCurrentEventLoopInMode Address = 0x7fff4a6a8d96 (filename not found) [in HIToolbox]
ReceiveNextEventCommon Address = 0x7fff4a6a8b06 (filename not found) [in HIToolbox]
_BlockUntilNextEventMatchingListInModeWithFilter Address = 0x7fff4a6a8884 (filename not found) [in HIToolbox]
_DPSNextEvent Address = 0x7fff48958a73 (filename not found) [in AppKit]
-[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] Address = 0x7fff490eee34 (filename not found) [in AppKit]
-[NSApplication run] Address = 0x7fff4894d885 (filename not found) [in AppKit]
tchar_main(int, wchar_t**) Address = 0x10741462a (filename not found) [in UE4Editor]
main Address = 0x107413e8e (filename not found) [in UE4Editor]
start Address = 0x7fff7338e015 (filename not found) [in libdyld.dylib]

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