I am able to fetch below crash report from the XCode debugger,
(lldb) thread backtrace
thread #12, queue = 'com.apple.NWURLSession', stop reason = hit Objective-C exception
frame #0: 0x0000000185f69a24 libobjc.A.dylibobjc_exception_throw frame #1: 0x0000000188b4f67c CoreFoundation-[NSObject(NSObject) doesNotRecognizeSelector:] + 364
frame #2: 0x00000001889fcb84 CoreFoundation___forwarding___ + 1492 frame #3: 0x00000001889fc4f0 CoreFoundation_CF_forwarding_prep_0 + 96
frame #4: 0x0000000191393bc8 Security__sec_protocol_configuration_set_ats_overrides_block_invoke + 160 frame #5: 0x00000001889ec8a0 CoreFoundationNSDICTIONARY_IS_CALLING_OUT_TO_A_BLOCK + 24
frame #6: 0x00000001889ec6e4 CoreFoundation-[__NSDictionaryM enumerateKeysAndObjectsWithOptions:usingBlock:] + 288 frame #7: 0x0000000191393ad0 Securitysec_protocol_configuration_set_ats_overrides + 1024
frame #8: 0x0000000191344dac Securitysec_protocol_configuration_create_with_builder + 548 frame #9: 0x0000000191344b58 Security__sec_protocol_configuration_copy_singleton_block_invoke + 36
frame #10: 0x0000000107cce064 libdispatch.dylib_dispatch_client_callout + 16 frame #11: 0x0000000107cb76d0 libdispatch.dylib_dispatch_once_callout + 140
frame #12: 0x0000000191343fcc Securitysec_protocol_configuration_copy_singleton + 72 frame #13: 0x00000001891b3b18 Network__34-[NWURLLoaderHTTP continueLoading]_block_invoke + 276
frame #14: 0x00000001892dae58 Networknw_parameters_create_secure_http_messaging + 452 frame #15: 0x0000000189235c60 Network-[NWURLLoaderHTTP continueLoading] + 424
frame #16: 0x000000018921e270 Network__25-[NWURLLoaderHTTP start:]_block_invoke + 1272 frame #17: 0x000000018921d77c Network-[NWURLLoaderHTTP start:] + 700
frame #18: 0x000000018921a8ac Network__34-[NWURLSessionTask startNextLoad:]_block_invoke + 164 frame #19: 0x0000000107cb4584 libdispatch.dylib_dispatch_call_block_and_release + 32
frame #20: 0x0000000107cce064 libdispatch.dylib_dispatch_client_callout + 16 frame #21: 0x0000000107cbc91c libdispatch.dylib_dispatch_lane_serial_drain + 796
frame #22: 0x0000000107cbd5d8 libdispatch.dylib_dispatch_lane_invoke + 484 frame #23: 0x0000000107cbebcc libdispatch.dylib_dispatch_workloop_invoke + 2196
frame #24: 0x0000000107cc9894 libdispatch.dylib_dispatch_root_queue_drain_deferred_wlh + 344 frame #25: 0x0000000107cc8eb0 libdispatch.dylib_dispatch_workloop_worker_thread + 580
frame #26: 0x0000000212f51660 libsystem_pthread.dylib`_pthread_wqthread + 292
(lldb) frame variable
(NSException *) exception = 0x00000001100f1d40 "-[__NSCFBoolean objectForKeyedSubscript:]: unrecognized selector sent to instance 0x1f655c390"
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFBoolean objectForKeyedSubscript:]: unrecognized selector sent to instance 0x1f655c390'
*** First throw call stack:
(0x188ae52ec 0x185f69a7c 0x188b4f67c 0x1889fcb84 0x1889fc4f0 0x191393bc8 0x1889ec8a0 0x1889ec6e4 0x191393ad0 0x191344dac 0x191344b58 0x104dae064 0x104d976d0 0x191343fcc 0x1891b3b18 0x1892dae58 0x189235c60 0x18921e270 0x18921d77c 0x18921a8ac 0x100856df4 0x104d94584 0x104dae064 0x104d9c91c 0x104d9d5d8 0x104d9ebcc 0x104da9894 0x104da8eb0 0x212f51660 0x212f4e9f8)
terminating due to uncaught exception of type NSException
(lldb) thread backtrace
thread #13, queue = 'com.apple.NWURLSession', stop reason = signal SIGABRT
frame #0: 0x00000001d95d21dc libsystem_kernel.dylib`__pthread_kill + 8
frame #1: 0x0000000212f54b40 libsystem_pthread.dylib`pthread_kill + 268
frame #2: 0x0000000190a052d0 libsystem_c.dylib`abort + 124
frame #3: 0x0000000212e7e5a0 libc++abi.dylib`abort_message + 132
frame #4: 0x0000000212e6cf10 libc++abi.dylib`demangling_terminate_handler() + 344
frame #5: 0x0000000185f6bbb8 libobjc.A.dylib`_objc_terminate() + 156
frame #6: 0x0000000212e7d8b4 libc++abi.dylib`std::__terminate(void (*)()) + 16
frame #7: 0x0000000212e80e1c libc++abi.dylib`__cxxabiv1::failed_throw(__cxxabiv1::__cxa_exception*) + 88
frame #8: 0x0000000212e80dc4 libc++abi.dylib`__cxa_throw + 92
frame #9: 0x0000000185f69be4 libobjc.A.dylib`objc_exception_throw + 448
frame #10: 0x0000000188b4f67c CoreFoundation`-[NSObject(NSObject) doesNotRecognizeSelector:] + 364
frame #11: 0x00000001889fcb84 CoreFoundation`forwarding + 1492
frame #12: 0x00000001889fc4f0 CoreFoundation`_CF_forwarding_prep_0 + 96
frame #13: 0x0000000191393bc8 Security`__sec_protocol_configuration_set_ats_overrides_block_invoke + 160
frame #14: 0x00000001889ec8a0 CoreFoundation`NSDICTIONARY_IS_CALLING_OUT_TO_A_BLOCK + 24
frame #15: 0x00000001889ec6e4 CoreFoundation`-[__NSDictionaryM enumerateKeysAndObjectsWithOptions:usingBlock:] + 288
frame #16: 0x0000000191393ad0 Security`sec_protocol_configuration_set_ats_overrides + 1024
frame #17: 0x0000000191344dac Security`sec_protocol_configuration_create_with_builder + 548
frame #18: 0x0000000191344b58 Security`__sec_protocol_configuration_copy_singleton_block_invoke + 36
frame #19: 0x0000000104dae064 libdispatch.dylib`_dispatch_client_callout + 16
frame #20: 0x0000000104d976d0 libdispatch.dylib`_dispatch_once_callout + 140
frame #21: 0x0000000191343fcc Security`sec_protocol_configuration_copy_singleton + 72
frame #22: 0x00000001891b3b18 Network`__34-[NWURLLoaderHTTP continueLoading]_block_invoke + 276
frame #23: 0x00000001892dae58 Network`nw_parameters_create_secure_http_messaging + 452
frame #24: 0x0000000189235c60 Network`-[NWURLLoaderHTTP continueLoading] + 424
frame #25: 0x000000018921e270 Network`__25-[NWURLLoaderHTTP start:]_block_invoke + 1272
frame #26: 0x000000018921d77c Network`-[NWURLLoaderHTTP start:] + 700
frame #27: 0x000000018921a8ac Network`__34-[NWURLSessionTask startNextLoad:]_block_invoke + 164
frame #28: 0x0000000100856df4 libclang_rt.asan_ios_dynamic.dylib`__wrap_dispatch_async_block_invoke + 196
frame #29: 0x0000000104d94584 libdispatch.dylib`_dispatch_call_block_and_release + 32
frame #30: 0x0000000104dae064 libdispatch.dylib`_dispatch_client_callout + 16
frame #31: 0x0000000104d9c91c libdispatch.dylib`_dispatch_lane_serial_drain + 796
frame #32: 0x0000000104d9d5d8 libdispatch.dylib`_dispatch_lane_invoke + 484
frame #33: 0x0000000104d9ebcc libdispatch.dylib`_dispatch_workloop_invoke + 2196
frame #34: 0x0000000104da9894 libdispatch.dylib`_dispatch_root_queue_drain_deferred_wlh + 344
frame #35: 0x0000000104da8eb0 libdispatch.dylib`_dispatch_workloop_worker_thread + 580
frame #36: 0x0000000212f51660 libsystem_pthread.dylib`_pthread_wqthread + 292