An Amazing Errorrrrrrrrrrrrrrrr

Hi All Friends

i have an amazing error in my project

i wrote a project in ASP.NET 2

a part of this project change a value in a row in a table in sql 2005 to another value

i used it in my computer (With Local host and my own iis) and it works properly and without any problem

but when i upload it in internet it have this error:

"Concurrency violation: the UpdateCommand affected 0 of the expected 1 records. "

can anyone help me?

i think the error is from my table in sql 2005 but i dont know what is wrong in it

thanks for your cares friends and im waiting for your usefull answers