Xcode error: memory read failed for 0x0, no stack

Xcode debug my app, I find some thread no stack, only 0x00000000 (but not crash). (In fact, there are similar crashes on the line in app store.)

Stack info: error: memory read failed for 0x0 I think stack overflow, so I try use tool "Address Sanitizer", but not found too.

Why is this happening, xcode no stack?