I have also gotten the same problem. Only mine will not even turn on the display and appears to be rebooting with same error.

Rebooting...
Guru Meditation Error: Core 1 panic'ed (Double exception).

Core 1 register dump:
PC : 0x4008e367 PS : 0x00040436 A0 : 0x3ffbda30 A1 : 0x3fffff87
A2 : 0x3ffffff7 A3 : 0x00000000 A4 : 0x3ffc4c94 A5 : 0x00000000
A6 : 0x00000001 A7 : 0x00000001 A8 : 0x40170684 A9 : 0x3ffbd9d0
A10 : 0x00000000 A11 : 0x00060623 A12 : 0x00060620 A13 : 0x80000000
A14 : 0x00000003 A15 : 0x00060023 SAR : 0x0000001d EXCCAUSE: 0x00000002
EXCVADDR: 0x3fffffff LBEG : 0x00000000 LEND : 0x00000000 LCOUNT : 0x00000000

Backtrace:0x4008e364:0x3fffff87 |<-CORRUPTED

ELF file SHA256: 0000000000000000

Rebooting...

ERROR A stack overflow in task IDLE has been detected.

Backtrace:0x400f30f7:0x3ffbd6b00x400f35fb:0x3ffbd6e0 0x400835f5:0x3ffbd730 0x40085c86:0x3ffbd750 0x400f314d:0x3ffbd810 0x4008e11d:0x3ffbd830 0x40091ad6:0x3ffbd850 0x40090446:0x3ffbd8c0 0x4008e21c:0x3ffbd900 0x4008e1ce:0xa5a5a5a5 |<-CORRUPTED

ELF file SHA256: 0000000000000000

Rebooting...

I have also been getting a JavaScript error occurred in the main process: Uncaught Exception: Error read ECONNRESET....
I wonder if this has anything to do with problems I am having with my M5Stack Basic and now my new Core2??