App has too many files, crashes android iphone

Hi,
My project have tool many files. When start app crash, on android phone

  1. files number : 20000
  2. ver : Unity3d 2017.1 up all vers.
07-18 16:47:29.313 3508-3571/? E/MessageQueue: IdleHandler threw exception
java.lang.Error: signal 11 (SIGSEGV), code 2 (SEGV_ACCERR), fault addr c60fcff0
Build fingerprint: 'Xiaomi/chiron/chiron:8.0.0/OPR1.170623.027/V9.5.2.0.ODECNFA:user/release-keys'
Revision: '0'
pid: 3508, tid: 3571, name: UnityMain  >>> com.kunlun.Test1 <<<
   r0 c60fcff8  r1 e8180100  r2 d587f000  r3 d587f0e0
   r4 d587f0e0  r5 d8cbc880  r6 d587f000  r7 00000008
   r8 d8cbc888  r9 00000010  sl 00000000  fp c7b6a0be
   ip e7296d60  sp c60fcff0  lr e726d48d  pc e726d6c8  cpsr e57afc90
 
   at libc.je_malloc(je_malloc:623)
   at libunity.UnityDefaultAllocator<LowLevelAllocator>::Allocate(unsigned int, int)(LowLevelAllocator:24)
   at libunity.MemoryManager::Allocate(unsigned int, unsigned int, MemLabelId const&, AllocateOptions, char const*, int)(Allocate:744)
   at libunity.malloc_internal(unsigned int, unsigned int, MemLabelId const&, AllocateOptions, char const*, int)(malloc_internal:52)
   at libunity.core::StringStorageDefault<char>::assign(char const*, unsigned int)(StringStorageDefault:180)
   at libunity.core::hash_map<core::basic_string<char, core::StringStorageDefault<char> >, ZipCentralDirectory::PathDescriptor, core::hash<core::basic_string<char, core::StringStorageDefault<char> > >, std::equal_to<core::basic_string<char, core::StringStorageDefault<char> > > >::insert(core::basic_string<char, core::StringStorageDefault<char> > const&, ZipCentralDirectory::PathDescriptor const&)(hash_map:428)
   at libunity.ZipCentralDirectory::readCentralDirectory()::$_0::__invoke(FileSystemEntry const&, FileAccessor&, char const*, zip::CDFD const&, void*)(readCentralDirectory:200)
   at libunity.zip::CentralDirectory::Enumerate(bool (*)(FileSystemEntry const&, FileAccessor&, char const*, zip::CDFD const&, void*), void*)(CentralDirectory:780)
   at libunity.ZipCentralDirectory::readCentralDirectory()(readCentralDirectory:20)
   at libunity.apkAddCentralDirectory(apkAddCentralDirectory:80)
   at libunity.Mount(char const*)(Mount:84)
   at libunity.UnityInitApplication()(UnityInitApplication:216)
   at libunity.UnityPlayerLoop()(UnityPlayerLoop:168)
   at libunity.nativeRender(_JNIEnv*, _jobject*)(nativeRender:52)
   at base.oatexec(oatexec)