Guru Meditation Error: Core 0 panic'ed (InstrFetchProhibited). Exception was unhandled.

[ThinkalVB]

I have commented everyline of the code and still it doesn't work now. When I compiled the same yesterday it worked fine. I have no idea what is wrong with it. I am frustrated please help me ....
I am trying to make a mesh formation library for ESP32
https://github.com/ThinkalVB/AirMesh (I uploaded the code in examples Blink.ino)
Arduino IDE, Win 10, ESP32 Wrover module

_AIRMESH_DEBUG_ Log
AP Configuration Accepted .......
MAC address = CC:50:E3:BF:AB:4D
dhcps: send_offer>>udp_sendto result 0
dhcps: send_offer>>udp_sendto result 0
dhcps: send_offer>>udp_sendto result 0
Guru Meditation Error: Core 0 panic'ed (InstrFetchProhibited). Exception was unhandled.
Core 0 register dump:
PC : 0x00000000 PS : 0x00060e30 A0 : 0x800ee975 A1 : 0x3ffb3d30
A2 : 0x3ffc998c A3 : 0x3ffc9bc0 A4 : 0x3ffb6374 A5 : 0x3ffbdb0c
A6 : 0x0101a8c0 A7 : 0x0b01a8c0 A8 : 0x800ee818 A9 : 0x3ffb3cf0
A10 : 0x3ffc999c A11 : 0x3ffc9bc0 A12 : 0x3ffb3d3c A13 : 0x00000044
A14 : 0x00000001 A15 : 0x00000006 SAR : 0x00000010 EXCCAUSE: 0x00000014
EXCVADDR: 0x00000000 LBEG : 0x4000c349 LEND : 0x4000c36b LCOUNT : 0x00000000

Backtrace: 0x00000000:0x3ffb3d30 0x400ee972:0x3ffb3d70 0x400f8ae5:0x3ffb3d90 0x400fc479:0x3ffb3dd0 0x40101536:0x3ffb3df0 0x400f1517:0x3ffb3e10 0x4008af7d:0x3ffb3e40

Rebooting...

[ThinkalVB]

Hi guys, I have managed to fix it; It was due to bad local IP and gateway address given to the WiFi.WiFi.softAPConfig() function as argument.