UE crashes when I open my project

Hello,

For no reason, the editor crashes when I open my project. It appeared the first time when I made a change on my code… I tried to revert it and then compile again but from now it crashes whatever code I have… (and yes, the code compiles fines).

Here is the (very useful) callstack :

MachineId:DBD5752F4B6219AB7EE04FA5B23AAB0C
EpicAccountId:6c91bee02cc842148d18182408951222

Unknown exception - code 00000001 (first/second chance not available)

Assertion failed: !HasAnyFlags(RF_NeedLoad|RF_NeedPostLoad) [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.5\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectLinker.cpp] [Line: 96] 
Detaching from existing linker for ..//..//..//..//

KERNELBASE + 24684 bytes
UE4Editor_Core + 3174836 bytes
UE4Editor_Core + 1677496 bytes
UE4Editor_Core + 1566850 bytes
UE4Editor_CoreUObject + 1646468 bytes
UE4Editor_CoreUObject + 935379 bytes
UE4Editor_CoreUObject + 1111249 bytes
UE4Editor_CoreUObject + 1108702 bytes
UE4Editor_BlueprintGraph + 361522 bytes
UE4Editor_UnrealEd + 9178673 bytes
UE4Editor_Engine + 2333798 bytes
UE4Editor_UMGEditor + 1261089 bytes
UE4Editor_CoreUObject + 906526 bytes
UE4Editor_CoreUObject + 1349750 bytes
UE4Editor_CoreUObject + 1425037 bytes
UE4Editor_UnrealEd + 2715634 bytes
UE4Editor_UnrealEd + 2655197 bytes
UE4Editor_UnrealEd + 2578029 bytes
UE4Editor_UnrealEd + 6123424 bytes
UE4Editor_UnrealEd + 3080788 bytes
UE4Editor_UnrealEd + 3079960 bytes
UE4Editor_UnrealEd + 6356739 bytes
UE4Editor_UnrealEd + 6118592 bytes
UE4Editor!GuardedMain() + 285 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.5\engine\source\runtime\launch\private\launch.cpp:125]
UE4Editor!GuardedMainWrapper() + 26 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.5\engine\source\runtime\launch\private\windows\launchwindows.cpp:125]
UE4Editor!WinMain() + 249 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.5\engine\source\runtime\launch\private\windows\launchwindows.cpp:201]
UE4Editor!__tmainCRTStartup() + 329 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]

Could you help me ? I already tried to delete the Intermediate, Binaries and Saved folders…

Thanks !