The following statement "The program will halt with a runtime error on Line $1$ is true about what will happen when the example code runs?

$1$: main PROC

$2$: push $10$

$3$: push $20$

$4$: call Ex$2$Sub

$5$: pop eax

$6$: INVOKE ExitProcess, $0$

$7$: main ENDP

$8$:

$9$: Ex$2$Sub PROC

$10$: pop eax

$11$: ret

$12$: Ex$2$Sub ENDP