Can't launch fortnite

i downloaded the game yesterday and played for several hours with a friend.
when i tried to launch the game today i was met with (launch → busy → running) and then crash report.
the crash report itself says nothing of use but this:

I have tried verifying the game. re-installing it. re-installing all supp programs like easy anti-cheat, directX and so on. i have been trying to deal with this problem for hours now and i’m reaching a point where i need some proper help… I can see this is not just an issue of mine since it’s all over the internet. but i have yet to find a solution.
any suggestions?

Hello, thank you for reporting your issues with Fortnite. However, Answerhub is meant for issues relating directly to Unreal Engine 4 rather than our game titles. For assistance with Fortnite, please visit the following link:

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