My launcher is crashing? Someone help

My launcher won’t launch. This is the error code I get.

I have a very recent MacbookAir.

I’m having the same issue and so are my friends. It crashes when you try to launch UE4, any version.

Mac High Sierra OS 10.13.3

I’m having the same issue to. I have Macbook Air version 10.11.6

im having the same problem and i have a PC

Guys i have fixed ,i want you guys to know about the solution.
click on the settings symbol on the right side of the launch option and click verify and wait for it to verify it and hopefully the error will be fixed

Same issue on Macbook Air latest version of High Sierra. Seems to be a mac issue.

Settings symbol? Where is that located?

Fix: HOW TO LOAD FORTNITE WITHOUT CRASHING (Mac OS ) - YouTube