Problems with remote ios build

Hello,
i am trying to deploy an app on an ios device.
so i am using a windows plattform with an remote macbook air to compile the c++
windows 10, unrealengine 4.21, vs 2017
mac os mojave, 10.14.5, xcode 10.2.1
i am able to create an ipa file and deploy it to my ipad, but it crashes after launch
while compiling i get some warnings and i attach an screenshot

maybe one of you may help, finding a solution…
thx in advance…
cheers oliver