Thread 1 exc_bad_access (code=1 address=0x1f) July 8, 2019 16 32 64 128 Thread 1 exc_bad_access (code=1 address=0x4) Thread 1 exc_bad_access (code=1 address=0x0) Thread 1 exc_bad_access (code=2 address=0x7ffeef3ffff8) Thread 1 exc_bad_access (code=1 address=0x1) Thread 1 exc_bad_access (code=2 address=0x7ff7bf6ffff8)