Assertion Failed! Help Please

Hello. I had started on a project 2 years ago on Version 4.6. Had to drop it back then. I restarted it in 4.14. It simply would crash back then. Now I’m trying to launch it in 4.16.2 and it still crashes but atleast now its giving an error which is Assertion failed!
I have attached the logs. Can someone please help me figure out what might be going wrong?
PS: Game was working fine on 4.6link text