Had the same problem, it happens only on 13.3.1 and higher and only for FREE developer accounts, Apple changed something internally so it crashes on real devices. To fix it: either get a paid developer account or open your Podfile and REMOVE the string “use_frameworks!”, then run “pod install” and “pod update”. If some of your pods does not work after this, add “use_modular_headers!” to you podfile and update it again