!!! An exception has occurred !!!

error: page fault at (nil): address not mapped to object
pc: 0x00400000
ins: 0x8c080000
registers:
$zero:	0x00000000 $t0:	0x00000000 $s0:	0x00000000 $t8:	0x00000000
$at:	0x00000000 $t1:	0x00000000 $s1:	0x00000000 $t9:	0x00000000
$v0:	0x00000000 $t2:	0x00000000 $s2:	0x00000000 $k0:	0x00000000
$v1:	0x00000000 $t3:	0x00000000 $s3:	0x00000000 $k1:	0x00000000
$a0:	0x00000000 $t4:	0x00000000 $s4:	0x00000000 $gp:	0x00000000
$a1:	0x00000000 $t5:	0x00000000 $s5:	0x00000000 $sp:	0x10001000
$a2:	0x00000000 $t6:	0x00000000 $s6:	0x00000000 $fp:	0x00000000
$a3:	0x00000000 $t7:	0x00000000 $s7:	0x00000000 $ra:	0x00400018