error message

Exception (29):
epc1=0x40207ba9 epc2=0x00000000 epc3=0x00000000 excvaddr=0x00000000 depc=0x00000000

ctx: cont
sp: 3ffefa30 end: 3ffefd30 offset: 01a0

>>>stack>>>
3ffefbd0:  00000018 00000001 3fff14ec 40207b1b
3ffefbe0:  3ffe8740 3ffefbf0 000000c8 00000018
3ffefbf0:  3ffefbe0 3ffefbf8 00000000 3fff14ec
3ffefc00:  00000002 3fff14fb 3fff1570 40203ba0
3ffefc10:  00000000 00000000 3ffefc26 3ffefc20
3ffefc20:  0000001e 017c0429 feefeffe feefeffe
3ffefc30:  00100000 00002000 00100000 00000100
3ffefc40:  feefeffe feefeffe feefeffe 00000020
3ffefc50:  00000001 000000fc 3fff1570 4020266c
3ffefc60:  3ffefca0 00000000 3fff1634 3fff18f4
3ffefc70:  00000002 00000001 3ffeeba1 00000578
3ffefc80:  000000b4 3fff1570 3fff156c 4020a695
3ffefc90:  00000578 4020b128 00000001 00000000
3ffefca0:  4020a814 4020a8d8 4020aa1c 002fb000
3ffefcb0:  00100000 00001000 3ffe8958 00000000
3ffefcc0:  000003e8 00002fb0 3fff14ac 3fff069c
3ffefcd0:  3ffefbe0 3fff1504 3fff14ff 3ffeec0a
3ffefce0:  00000000 3fff1570 3fff156c 4020a6df
3ffefcf0:  3fffdad0 3ffeecd0 3ffeecd0 3ffeecfc
3ffefd00:  3fffdad0 3ffeecd0 3ffeecd0 40207c9b
3ffefd10:  feefeffe 00000000 3ffeecf4 40209bc4
3ffefd20:  feefeffe feefeffe 3ffeed10 40100718
<<<stack<<<

 ets Jan  8 2013,rst cause:2, boot mode:(3,6)

load 0x4010f000, len 1384, room 16
tail 8
chksum 0x2d
csum 0x2d
v3de0c112
~ld


***********************************************
*              Exception Decoder              *
***********************************************
Exception 29: StoreProhibited: A store referenced a page mapped with an attribute that does not permit stores
Decoding 14 results
0x40207ba9: loadConfig() at C:\Users\SA\AppData\Local\Temp\arduino_build_662382\sketch/config_json_file.h line 30
0x40207b1b: get_impl  at C:\Users\SA\Documents\Arduino\_arduino-1.8.5\libraries\libraries\ArduinoJson\src/ArduinoJson/JsonObject.hpp line 310
:  (inlined by) get  at C:\Users\SA\Documents\Arduino\_arduino-1.8.5\libraries\libraries\ArduinoJson\src/ArduinoJson/JsonObject.hpp line 180
:  (inlined by) as  at C:\Users\SA\Documents\Arduino\_arduino-1.8.5\libraries\libraries\ArduinoJson\src/ArduinoJson/JsonObjectSubscript.hpp line 61
:  (inlined by) operator char  at C:\Users\SA\Documents\Arduino\_arduino-1.8.5\libraries\libraries\ArduinoJson\src/ArduinoJson/Deserialization/../JsonVariantCasts.hpp line 49
:  (inlined by) loadConfig() at C:\Users\SA\AppData\Local\Temp\arduino_build_662382\sketch/config_json_file.h line 30
0x40203ba0: spiffs_obj_lu_scan at C:\Users\SA\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266\spiffs/spiffs_nucleus.c line 941
0x4020266c: SPIFFS_mount at C:\Users\SA\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266\spiffs/spiffs_hydrogen.c line 980
0x4020a695: SPIFFSImpl::_tryMount() at C:\Users\SA\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266/spiffs_api.h line 240
0x4020b128: SPIFFSImpl::_check_cb(spiffs_check_type, spiffs_check_report, unsigned int, unsigned int) at C:\Users\SA\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266/spiffs_api.h line 242
0x4020a814: spiffs_hal_read(unsigned int, unsigned int, unsigned char*) at C:\Users\SA\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266/spiffs_hal.cpp line 45
0x4020a8d8: spiffs_hal_write(unsigned int, unsigned int, unsigned char*) at C:\Users\SA\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266/spiffs_hal.cpp line 102
0x4020aa1c: spiffs_hal_erase(unsigned int, unsigned int) at C:\Users\SA\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266/spiffs_hal.cpp line 168
0x4020a6df: SPIFFSImpl::begin() at C:\Users\SA\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266/spiffs_api.h line 124
0x40207c9b: setup at C:\Users\SA\AppData\Local\Temp\arduino_modified_sketch_304954/EspIrrigationPlants.ino line 141
0x40209bc4: loop_wrapper at C:\Users\SA\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266/core_esp8266_main.cpp line 56
0x40100718: cont_norm at C:\Users\SA\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266/cont.S line 109