Failed to enable constraints

Did any one face this issue before ?

I had created odbc connection to mysql in .net 2.0 dataset.
Having issue on "fillby" transaction after i create a new select query.











In the front end page, having constraint issue too.
I had try to enable the dataset and set auto increment in the dataset to solve these issue on my local, but when upload to the server, the error happen again. :S

Any one have any idea ?