stack error

[xiaozhiyong1996]

stack>>> 3fff1ae0: 3ffe98f4 3fff0b54 3fff0a60 402136e0
3fff1af0: 00000000 3fff0b54 3fff60f4 402081b1
3fff1b00: 00000000 3fff6100 00000004 401004d8
3fff1b10: 00000000 00000000 00000000 00000000
3fff1b20: 3fff60f4 3fff0b54 00000004 4020b3c5
3fff1b30: 3ffea490 00000000 000003e8 4020b2fd
3fff1b40: 3fff48b4 3fff48f4 00000000 00000000
3fff1b50: 00000000 3fff480c 0000000f 0000000c
3fff1b60: 00000000 00000000 00000000 00000000
3fff1b70: 402090f8 3fff05ac 3fff0b54 3fff05a0
3fff1b80: 402090f8 3fff05ac 3fff0b54 4020ba30
3fff1b90: 3fff47e4 0000001f 00000011 402077e8
3fff1ba0: 00000000 00000000 00000000 00000000
3fff1bb0: 00000000 00000000 3fff3d84 40214cba
3fff1bc0: 3fff1ba0 3fff0484 3ffe98f4 40210fa0
3fff1bd0: 00000000 00000000 3fff34b4 3fff0484
3fff1be0: 00000000 3fff0484 3fff34b4 4020ba70
3fff1bf0: 3fff0970 3fff0b54 00000000 402076c4
3fff1c00: 00000000 00000000 00000000 40206c6c
3fff1c10: feefeffe feefeffe feefeffe 3fff0c10
3fff1c20: 3fffdad0 00000000 3fff0c0a 402156e0
3fff1c30: feefeffe feefeffe 3fff0c20 40100718
<<<stack<<<

Decoding 16 results 0x402136e0: aJsonClass::parse(aJsonStream) at C:\Users\xiaozhiyong\Documents\Arduino\libraries\aJson-master/aJSON.cpp line 970 0x402081b1: LightGroup::LightGroup(aJsonObject) at C:\Users\XIAOZH~1\AppData\Local\Temp\arduino_build_806625\sketch/LightService.cpp line 1696 0x401004d8: malloc at C:\Users\xiaozhiyong\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266\umm_malloc/umm_malloc.c line 1664 0x4020b3c5: initializeSceneSlots() at C:\Users\XIAOZH~1\AppData\Local\Temp\arduino_build_806625\sketch/LightService.cpp line 1696 0x4020b2fd: initializeGroupSlots() at C:\Users\XIAOZH~1\AppData\Local\Temp\arduino_build_806625\sketch/LightService.cpp line 1696 0x402090f8: scenesIdLightFn(WcFnRequestHandler, String, HTTPMethod) at C:\Users\XIAOZH~1\AppData\Local\Temp\arduino_build_806625\sketch/LightService.cpp line 1696 0x402090f8: scenesIdLightFn(WcFnRequestHandler, String, HTTPMethod) at C:\Users\XIAOZH~1\AppData\Local\Temp\arduino_build_806625\sketch/LightService.cpp line 1696 0x4020ba30: LightServiceClass::begin(ESP8266WebServer) at C:\Users\XIAOZH~1\AppData\Local\Temp\arduino_build_806625\sketch/LightService.cpp line 1696 0x402077e8: std::_Function_handler ::_M_invoke(std::_Any_data const&, WcFnRequestHandler, String, HTTPMethod) at C:\Users\XIAOZH~1\AppData\Local\Temp\arduino_build_806625\sketch/LightService.cpp line 1696 0x40214cba: String::String(char const*) at C:\Users\xiaozhiyong\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266/WString.cpp line 720 0x40210fa0: HTTPUpload::HTTPUpload() at C:\Users\xiaozhiyong\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WebServer\src\detail/RequestHandlersImpl.h line 53 0x4020ba70: LightServiceClass::begin() at C:\Users\XIAOZH~1\AppData\Local\Temp\arduino_build_806625\sketch/LightService.cpp line 1696 0x402076c4: setup at D:\gitdata\rgbwifi\ESP8266HueEmulator-master\ESP8266HueEmulator/ESP8266HueEmulator.ino line 178 (discriminator 2) 0x40206c6c: _M_invoke at c:\users\xiaozhiyong\appdata\local\arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\1.20.0-26-gb404fb9-2\xtensa-lx106-elf\include\c++\4.8.2/functional line 2069 0x402156e0: loop_wrapper at C:\Users\xiaozhiyong\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266/core_esp8266_main.cpp line 56 0x40100718: cont_norm at C:\Users\xiaozhiyong\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266/cont.S line 109