There is four error in assembly code please find those and modified them. and it gives this error "Problem assemblying file Check all lines for end-of-line." How I can fix it?

#Assembly Code lw $t0, 0($t8) add $t8, $t8, 4 lw $t1, 0($t8) addi $t8, $t8, 4 lw $t2, ($t8) addi $t8, $t8, 4 lw $t3, 0($t8) addi $t8, $t8, 4 lw $t4, 0($t8) addi $t8, $t8, 4 lw $t5, 0($t9) addi $t9, $t9, 4 lw $t6, 0($t9) addi $t9, $t9, 4 lw $t7, 0($t9) addi $t9, $t9, 4 lw $t8, 0($t9) addi $t9, $t9, 4 lw $t9, 0($t9) sub $t0, $t0 $t5 sub $t1, $t1, $t6 sub $t2, $t2, $t7 sub $t3, $t3, $t8 sub $t4, $t4, $t9 add s1, $t0, $t1 add $s1, $s1, $t2 add $s1, $s1, $t3 add $s1, $s1, $t4 add $v0, $s1, $zero

#Data Memory 008:00000128 00C:0000a35a 010:0000f696 014:00000016 018:00000018 054:00000020 058:00000022 05C:00000024 060:00000026 064:00000028

#Register Values 24:00000008 25:00000054