the same error help plz
[2017.11.12-02.45.13:860][ 0]LogWindows: Error: === Critical error: ===
[2017.11.12-02.45.13:862][ 0]LogWindows: Error:
[2017.11.12-02.45.13:863][ 0]LogWindows: Error: Assertion failed: IsValid() [File:D:\UnrealEngine-4.18.0-release\Engine\Source\Runtime\Core\Public\Templates/SharedPointer.h] [Line: 824]