There are several crash logs Crashed: com.apple.root.default-qos EXC_BAD_ACCESS KERN_INVALID_ADDRESS 0x0000000000000038 0 CFNetwork 0x1e98 CFURLRequestSetHTTPRequestBody + 36 1 *** 0x104f7d0 -[XXXRequest getURLRequest] + 66 (XXXRequest.m:66) 2 *** 0x1051328 -[XXXRequestManager processHTTPRequest:] + 152 (XXXRequestManager.m:152) 3 *** 0x79748c __47-[XXXLog __submit:]_block_invoke + 277 (XXXLog.m:277) 4 FBLPromises 0x5138 __56-[FBLPromise chainOnQueue:chainedFulfill:chainedReject:]_block_invoke.18 + 52 5 libdispatch.dylib 0x63094 _dispatch_call_block_and_release + 24 6 libdispatch.dylib 0x64094 _dispatch_client_callout + 16 7 libdispatch.dylib 0x6924 _dispatch_queue_override_invoke + 924 8 libdispatch.dylib 0x13b94 _dispatch_root_queue_drain + 340 9 libdispatch.dylib 0x1439c _dispatch_worker_thread2 + 172 10 libsystem_pthread.dylib 0x1dc4 _pthread_wqthread + 224 11 libsystem_pthread.dylib 0x192c start_wqthread + 8