what's the problem with this MIPS code?

This is really weird.. when I try to run ths code using PC Spim and execute it directly using F5, it complaints that a bad data address occured and ignored.. however when I run this step by step at a time, when it reaches the end of the process.. it doesn't give me that error.. so I am confused why this error could happen?? Can someone help me to point it out..

.text
	.globl _ifsGalore
	_ifsGalore:
			# Function Entry
	sw $ra,-72($sp)
	sw $fp,-76($sp)
	add  $fp, $zero, $sp
	subu $sp, $sp, 76
	 # MOVE 
	add $t0,$zero,5
	sw  $t0,-48($fp)
	 # MOVE 
	add $t0,$zero,6
	lw  $t1,-48($fp)
	mul $t1,$t1,4
	add  $t2,$zero,-44
	add $t1,$t2,$t1
	add $t1,$fp,$t1
	sw  $t0,($t1)
	 # MOVE 
	add $t0,$zero,5
	sw  $t0,-56($fp)
	 # MOVE 
	lw  $t0,-56($fp)
	mul $t0,$t0,4
	add  $t1,$zero,-44
	add $t0,$t0,$t1
	add $t0,$fp,$t0
	lw  $t1,($t0)
	sw $t1,-52($fp)
	 # MOVE 
	add $t0,$zero,7
	lw  $t1,-52($fp)
	mul $t1,$t1,4
	add  $t2,$zero,-44
	add $t1,$t2,$t1
	add $t1,$fp,$t1
	sw  $t0,($t1)
	 # MOVE 
	add $t0,$zero,6
	sw  $t0,-68($fp)
	 # MOVE 
	lw  $t0,-68($fp)
	mul $t0,$t0,4
	add  $t1,$zero,-44
	add $t0,$t0,$t1
	add $t0,$fp,$t0
	lw  $t1,($t0)
	sw $t1,-64($fp)
	 # MOVE 
	lw  $t0,-64($fp)
	mul $t0,$t0,4
	add  $t1,$zero,-44
	add $t0,$t0,$t1
	add $t0,$fp,$t0
	lw  $t1,($t0)
	sw $t1,-60($fp)
	 # MOVE 
	add $t0,$zero,8
	lw  $t1,-60($fp)
	mul $t1,$t1,4
	add  $t2,$zero,-44
	add $t1,$t2,$t1
	add $t1,$fp,$t1
	sw  $t0,($t1)
			# Function Ends
	LABEL1:
			# Exit Sequence
	lw $ra,-72($fp)
	add  $sp, $zero, $fp
	lw $fp,-76($fp)
	jal $ra
	.globl main
	main:
			# Function Entry
	sw $ra,-4($sp)
	sw $fp,-8($sp)
	add  $fp, $zero, $sp
	subu $sp, $sp, 8
			# Function call
	jal _ifsGalore
	add $sp,$sp,0
			# Function Ends
	LABEL2:
			# Exit Sequence
	lw $ra,-4($fp)
	add  $sp, $zero, $fp
	lw $fp,-8($fp)
	jal $ra

Select allOpen in new window