How does stacktraced native crashes make sense? How can I understand where to fix?

Question

Hello. We have just implemented a module to download our mini games from Firebase Storage with web requests. Upon testing it we noticed that only one of our test phones (Samsung A71) crashed.

From Android Logcat we were able to get the native crash log and immediately stacktraced it to get more ideas on the potential fixes. But we are stuck now because we couldn't be able to comprehend this crash log easily.

What does cause this crash? What must I do more to uncover what casuses it?

 2021.09.15 15:18:35.848 20156 20995 Error CRASH signal 11 (SIGSEGV), code 2 (SEGV_ACCERR), fault addr 0x6ce9af4860
 2021.09.15 15:18:35.848 20156 20995 Error CRASH     x0  0000006ce98f4820  x1  b400006c364b5050  x2  0000000000000003  x3  0000000000000000
 2021.09.15 15:18:35.848 20156 20995 Error CRASH     x4  0000000000000000  x5  b400006c374b8050  x6  0000000000000000  x7  0000000000000000
 2021.09.15 15:18:35.848 20156 20995 Error CRASH     x8  0000006ce9af4820  x9  0000000000000018  x10 0000000000003238  x11 0000000000000000
 2021.09.15 15:18:35.848 20156 20995 Error CRASH     x12 0000000000000000  x13 0000000000000000  x14 0000000000000000  x15 0000000000000040
 2021.09.15 15:18:35.848 20156 20995 Error CRASH     x16 0000006ce98bf6f8  x17 0000007004ac1d88  x18 0000000000000020  x19 0000006ce9900b40
 2021.09.15 15:18:35.848 20156 20995 Error CRASH     x20 b400006c364b5050  x21 0000000000000003  x22 0000000000000003  x23 0000006ce98f1ec6
 2021.09.15 15:18:35.848 20156 20995 Error CRASH     x24 0000000000000018  x25 0000000000003234  x26 0000000000003238  x27 ffffff6100000000
 2021.09.15 15:18:35.849 20156 20995 Error CRASH     x28 0000000000002a10  x29 0000006ce82bf830
 2021.09.15 15:18:35.849 20156 20995 Error CRASH     sp  0000006ce82bf680  lr  0000006ce86d623c  pc  0000006ce86d0628
 2021.09.15 15:18:35.849 20156 20995 Error CRASH backtrace:
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #00 pc 000000000040a628 (dynamic_array<CrashReporting::Thread, 0ul>::dynamic_array(dynamic_array<CrashReporting::Thread, 0ul> const&) at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #01 pc 0000000000410238 (UnityEngine::Analytics::SuitePerformanceReportingConfigkUnitTestCategory::Fixture::ConfigChanged(core::basic_string<char, core::StringStorageDefault<char> >&) at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #02 pc 000000000040ff94 (void JSONRead::Transfer<UnityEngine::Analytics::PerformanceReportingConfig::ConfigValue>(UnityEngine::Analytics::PerformanceReportingConfig::ConfigValue&, char const*, TransferMetaFlags, bool) at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #03 pc 0000000000409c5c (CallbackArrayBase<void (*)(DebugStringToFileData const&, LogType, bool), void (*)(void const*, DebugStringToFileData const&, LogType, bool)>::MoveFoward(unsigned int) at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #04 pc 0000000000409c18 (CallbackArrayBase<void (*)(DebugStringToFileData const&, LogType, bool), void (*)(void const*, DebugStringToFileData const&, LogType, bool)>::Unregister(CallbackInfoBase<void (*)(DebugStringToFileData const&, LogType, bool), void (*)(void const*, DebugStringToFileData const&, LogType, bool)>::FunctionPointers&, void const*) at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #05 pc 0000000000b31788 (SuiteDynamicArraykPerformanceTestCategory::TestResizeInitializedWithoutValue<float __vector(3)>::RunImpl() const at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #06 pc 0000000000b2de60 (Testing::TestCaseEmitter<char const*, DateTime, void, void, void>::TestCase::ToString() const at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #07 pc 0000000000b28cf0 (SuiteHandleManagerkUnitTestCategory::TestPodArray_WhenHandleAllocated_ValueMatchesInitParameterHelper::RunImpl() at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #08 pc 0000000000b33b30 (SuiteBitUtilitykUnitTestCategory::TestMath_HighestBit32::RunImpl() const at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #09 pc 0000000000b33318 (SuiteBitUtilitykUnitTestCategory::TestMath_BitsInMask32::RunImpl() const at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #10 pc 0000000000b31030 (TemplatedTestRegistrator<SuiteDynamicArraykPerformanceTestCategory::TestMoveCtor_PairOfArraysWith10Elements<float __vector(3)> >::Create(void*) at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #11 pc 0000000000b30e58 (dynamic_array<math::float3_storage, 0ul>::dynamic_array(unsigned long, math::float3_storage const&, MemLabelId const&) at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #12 pc 0000000000b2df4c (Testing::ParametricTestInstance<void (*)(char const*, DateTime)>::~ParametricTestInstance() at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #13 pc 0000000000b28cf0 (SuiteHandleManagerkUnitTestCategory::TestPodArray_WhenHandleAllocated_ValueMatchesInitParameterHelper::RunImpl() at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #14 pc 0000000000b33b30 (SuiteBitUtilitykUnitTestCategory::TestMath_HighestBit32::RunImpl() const at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #15 pc 0000000000b33318 (SuiteBitUtilitykUnitTestCategory::TestMath_BitsInMask32::RunImpl() const at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #16 pc 0000000000b31030 (TemplatedTestRegistrator<SuiteDynamicArraykPerformanceTestCategory::TestMoveCtor_PairOfArraysWith10Elements<float __vector(3)> >::Create(void*) at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #17 pc 0000000000b470c0 (SuiteHashFunctionsPerformancekPerformanceTestCategory::TestHash64_4KB_SpookyV2_64_PerfHelper::RunImpl() at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #18 pc 0000000000a71e18 (K05O01_SetLevel_m2C2BD14AFF43DF21FBD8A8BC67A7251E04E511E8 at D:\Repos\ritimus\Temp\StagingArea\Il2Cpp\il2cppOutput/Assembly-CSharp15.cpp:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libil2cpp.so (BuildId: ad9ed9a44109dc2e69986912a5eddf21c0b5d5cf)
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #19 pc 0000000000ae9650 (_MoveNext_m93F1CBD1B012EA277C089D50F52F5619CD7::U3CResetLevelU3Ed( const[373]) at D:\Repos\ritimus\Temp\StagingArea\Il2Cpp\il2cppOutput/Assembly-CSharp16.cpp:23594)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libil2cpp.so (BuildId: ad9ed9a44109dc2e69986912a5eddf21c0b5d5cf)
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #20 pc 0000000001114260 (InterfaceFuncInvoker0<bool>::Invoke(unsigned int, Il2CppClass*, Il2CppObject*) at D:\Repos\ritimus\Temp\StagingArea\Il2Cpp\il2cppOutput/UnityEngine.CoreModule1.cpp:152)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libil2cpp.so (BuildId: ad9ed9a44109dc2e69986912a5eddf21c0b5d5cf)
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #21 pc 00000000007a024c (RuntimeInvoker_FalseVoid_t22962CB4C05B1D89B55A6E1139F0E87A90987017_RuntimeObject_IntPtr_t(void (*)(), MethodInfo const*, void*, void**) at D:\Repos\ritimus\Temp\StagingArea\Il2Cpp\il2cppOutput/Il2CppInvokerTable.cpp:43922)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libil2cpp.so (BuildId: ad9ed9a44109dc2e69986912a5eddf21c0b5d5cf)
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #22 pc 000000000084ce44 (il2cpp::vm::Runtime::Invoke(MethodInfo const*, void*, void**, Il2CppException**) at C:\Program Files\Unity\Hub\Editor\2019.4.10f1\Editor\Data\il2cpp\libil2cpp\vm/Runtime.cpp:545)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libil2cpp.so (BuildId: ad9ed9a44109dc2e69986912a5eddf21c0b5d5cf)
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #23 pc 00000000005c96c8 (void SafeBinaryRead::TransferSTLStyleArray<dynamic_array<SpriteVertex, 0ul> >(dynamic_array<SpriteVertex, 0ul>&, TransferMetaFlags) at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #24 pc 00000000005d6010 (SuiteSortingGroupkUnitTestCategory::TestDeactivatingChildSortingGroup_UpdatesSortingGroupIndexForSwappedChildRendererHelper::RunImpl() at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #25 pc 00000000005ddac0 (core::hash_set<core::pair<std::__ndk1::pair<UnityGUID, long> const, SpriteAtlasData, false>, core::hash_pair<SpriteRenderDataKeyHash, std::__ndk1::pair<UnityGUID, long> const, SpriteAtlasData>, core::equal_pair<std::__ndk1::equal_to<std::__ndk1::pair<UnityGUID, long> >, std::__ndk1::pair<UnityGUID, long> const, SpriteAtlasData> >::node* core::hash_set<core::pair<std::__ndk1::pair<UnityGUID, long> const, SpriteAtlasData, false>, core::hash_pair<SpriteRenderDataKeyHash, std::__ndk1::pair<UnityGUID, long> const, SpriteAtlasData>, core::equal_pair<std::__ndk1::equal_to<std::__ndk1::pair<UnityGUID, long> >, std::__ndk1::pair<UnityGUID, long> const, SpriteAtlasData> >::lookup<std::__ndk1::pair<UnityGUID, long> >(std::__ndk1::pair<UnityGUID, long> const&) const at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #26 pc 00000000005dd6b4 (void SpriteAtlasData::Transfer<StreamedBinaryWrite>(StreamedBinaryWrite&) at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #27 pc 00000000004300fc (AnimationPlayableOutput_CUSTOM_InternalSetTarget(HPlayableOutput&, ScriptingBackendNativeObjectPtrOpaque*) at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #28 pc 0000000000505404 (SuiteAudioSampleProviderkUnitTestCategory::TestQueueSampleFrames_WhenQueueingSamplesAboveMax_EmitsOverflowNativeEvent::RunImpl() const at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #29 pc 0000000000505438 (SuiteAudioSampleProviderkUnitTestCategory::TestQueueSampleFrames_WhenQueueingSamplesAboveMax_EmitsOverflowNativeEvent::RunImpl() const at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.849 20156 20995 Error CRASH       #30 pc 0000000000505670 (SuiteAudioSampleProviderkUnitTestCategory::TestQueueSampleFrames_WhenQueueingSamplesAboveMax_EmitsOverflowNativeEventHelper::RunImpl() at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.850 20156 20995 Error CRASH       #31 pc 0000000000642608 (SuiteBootConfigDatakUnitTestCategory::TestInitFromString_CanParseKeysWithSingleValueHelper::RunImpl() at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.850 20156 20995 Error CRASH       #32 pc 0000000000656220 (SuiteFixedBitSetkUnitTestCategory::TestLogicOps_MultipleOfWordSizePlusOne::RunImpl() const at ??:?)  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/lib/arm64/libunity.so ?? ??:0
 2021.09.15 15:18:35.850 20156 20995 Error CRASH       #33 pc 00000000000346cc  /data/app/~~QV4Mxet65Apf_BGu8xPw7A==/com.ritimus.ritimus-a6UadqPZoDaBTNwSgaqGMQ==/oat/arm64/base.odex

How does stacktraced native crashes make sense? How can I understand where to fix?

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