EXCEPTION,BUT I UNKOWN IT

Exception 0xc0000005 0x0 0xffffffffffffffff 0xa49033
PC=0xa49033

runtime: unknown pc 0xa49033
stack: frame={sp:0x99cfb58, fp:0x0} stack=[0x97d1ed0,0x99cfed0)
00000000099cfa58: 00000000099cfac0 00000000099cfaa0
00000000099cfa68: 00000000099cfc63 00000000099cfaa0
00000000099cfa78: 00000000009ade4c 00000000099cfb10
00000000099cfa88: 00000000009a6a23 00000000002dc000
00000000099cfa98: 00000000099cfac0 0000000000000000
00000000099cfaa8: 00000000099cfcbf 00000000099cfae0
00000000099cfab8: 00000000009aa025 00000000002d9e40
00000000099cfac8: 0000000000000030 00000000099cfb00
00000000099cfad8: 00000000099cfcbf 00000000099cfb10
00000000099cfae8: 00000000009ade1c 00000000002d9e40
00000000099cfaf8: 0000000000a0e4d2 0000000000b90700
00000000099cfb08: 00000000002dc000 00000000099cfb40
00000000099cfb18: 0000000000a37595 00000000002d9e20
00000000099cfb28: 00000000099cfb50 00000000099cfb60
00000000099cfb38: 00000000009aa025 00000000099cfb80
00000000099cfb48: 0000000000a37494 00000000099cfb7f
00000000099cfb58: <0000000000a0f16b 00000000099cfb90
00000000099cfb68: 00000000009ade1c 00000000002dc000
00000000099cfb78: 00000000002d9e20 00000000099cfbf0
00000000099cfb88: 0000000000a37106 00000000099cfbb8
00000000099cfb98: 00000000002d9270 00000000002d98e0
00000000099cfba8: 0000000000a369af 0000000000b90700
00000000099cfbb8: 00000000002d9e20 00000000002d9e20
00000000099cfbc8: 0000000000a37464 00000000099cfbff
00000000099cfbd8: 00000000002dc000 00000000002d9e40
00000000099cfbe8: 00000000002dbfe0 00000000099cfcc0
00000000099cfbf8: 00000000099cfcbf 00000000099cfc50
00000000099cfc08: 0000000000a36d83 00000000099cfc30
00000000099cfc18: 0000000000b90700 00000000002d9e20
00000000099cfc28: 00000000002dc000 00000000099cfc60
00000000099cfc38: 0000000000a16410 00000000099cfcc0
00000000099cfc48: 00000000002dbfe0 0000000000b90700
runtime: unknown pc 0xa49033
stack: frame={sp:0x99cfb58, fp:0x0} stack=[0x97d1ed0,0x99cfed0)
00000000099cfa58: 00000000099cfac0 00000000099cfaa0
00000000099cfa68: 00000000099cfc63 00000000099cfaa0
00000000099cfa78: 00000000009ade4c 00000000099cfb10
00000000099cfa88: 00000000009a6a23 00000000002dc000
00000000099cfa98: 00000000099cfac0 0000000000000000
00000000099cfaa8: 00000000099cfcbf 00000000099cfae0
00000000099cfab8: 00000000009aa025 00000000002d9e40
00000000099cfac8: 0000000000000030 00000000099cfb00
00000000099cfad8: 00000000099cfcbf 00000000099cfb10
00000000099cfae8: 00000000009ade1c 00000000002d9e40
00000000099cfaf8: 0000000000a0e4d2 0000000000b90700
00000000099cfb08: 00000000002dc000 00000000099cfb40
00000000099cfb18: 0000000000a37595 00000000002d9e20
00000000099cfb28: 00000000099cfb50 00000000099cfb60
00000000099cfb38: 00000000009aa025 00000000099cfb80
00000000099cfb48: 0000000000a37494 00000000099cfb7f
00000000099cfb58: <0000000000a0f16b 00000000099cfb90
00000000099cfb68: 00000000009ade1c 00000000002dc000
00000000099cfb78: 00000000002d9e20 00000000099cfbf0
00000000099cfb88: 0000000000a37106 00000000099cfbb8
00000000099cfb98: 00000000002d9270 00000000002d98e0
00000000099cfba8: 0000000000a369af 0000000000b90700
00000000099cfbb8: 00000000002d9e20 00000000002d9e20
00000000099cfbc8: 0000000000a37464 00000000099cfbff
00000000099cfbd8: 00000000002dc000 00000000002d9e40
00000000099cfbe8: 00000000002dbfe0 00000000099cfcc0
00000000099cfbf8: 00000000099cfcbf 00000000099cfc50
00000000099cfc08: 0000000000a36d83 00000000099cfc30
00000000099cfc18: 0000000000b90700 00000000002d9e20
00000000099cfc28: 00000000002dc000 00000000099cfc60
00000000099cfc38: 0000000000a16410 00000000099cfcc0
00000000099cfc48: 00000000002dbfe0 0000000000b90700

goroutine 491 [syscall]:
github.com/andlabs/ui._Cfunc_uiMultilineEntryAppend(0x2d7610, 0x2d88f0)
_cgo_gotypes.go:2555 +0x4c
github.com/andlabs/ui.(*MultilineEntry).Append.func1(0x2d7610, 0x2d88f0)
C:/Users/pc/go/src/github.com/andlabs/ui/multilineentry.go:68 +0x6c
github.com/andlabs/ui.(*MultilineEntry).Append(0xc042072ff0, 0xc042fabf38, 0x17)
C:/Users/pc/go/src/github.com/andlabs/ui/multilineentry.go:68 +0x64