about IQ hook question, can't store data, what's wrong ???

=ERROR REPORT==== 2009-11-22 15:14:10 ===
** Generic server <0.283.0> terminating
** Last message in was {'DOWN',#Ref<0.0.0.8752>,process,<0.284.0>,
{badarg,
[{erlang,list_to_binary,
[[3,
["insert into cargo(id,title,fromcity,tocity,senderid,itype,isrc,contact) values (",
1000,", '","this is a test infomation",
"', '","shuzhou","', '","shang hai",
"',","4",",","2",",","2",", '","hyt56",
"');"]]]},
{mysql_conn,do_query,6},
{mysql_conn,loop,1}]}}
** When Server state == {state,<0.284.0>,mysql}
** Reason for termination ==
** connection_dropped

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