触发器哪里有问题么？？为什么新增纪录时总是报错，无法保存，谢谢大家指教！

有一个表，我写了2个触发器，分别是for update and for insert

详细如下：
CREATE TRIGGER tri_depose ON fgoodinout
FOR update
AS
declare @fg_hand numeric,@fg_money numeric,@fg_vcode varchar(4),@fg_depose smallint,@fg_owe numeric
if not update(fg_depose)
begin
commit tran
return
end

select fg_hand=@fg_hand,
fg_money=@fg_money,
fg_vcode=@fg_vcode,
fg_depose=@fg_depose
from inserted

set @fg_owe=@fg_money - @fg_hand

if @fg_depose =1 --1代表有效票据，0代表费票
UPDATE victualer
SET v_money = v_money + @fg_owe
WHERE victualer.v_code = @fg_vcode
else

UPDATE victualer
SET v_money = v_money - @fg_owe
WHERE victualer.v_code = @fg_vcode


if @@error<>0
rollback tran
else
commit tran

触发器2：
CREATE TRIGGER tri_fgoodinout ON fgoodinout
FOR INSERT
AS
declare @fg_hand numeric,@fg_money numeric,@fg_vcode varchar(4),@fg_owe numeric
select fg_hand=@fg_hand,
fg_money=@fg_money,
fg_vcode=@fg_vcode
from inserted

set @fg_owe=@fg_money - @fg_hand

if @fg_owe =0
begin
commit tran
return
end
else

UPDATE victualer
SET v_money = v_money + @fg_owe
WHERE victualer.v_code = @fg_vcode

if @@error<>0
rollback tran
else
commit tran



我直接在sql server中新增行就保存不上（insert操作），错误提示如下：

进程54发生了严重的异常c0000005_EXCEPTION_ACCESS_VIOLATION.sql server将终止该进程

触发器出什么问题了？？