Well, i haven't changed the mysql import code at all, so if something changed, it did in Yii Framework where things are a bit trickier to handle.
I'd say to look into your mysql logs and see the reason and fix it, like shown in the above link.
apologies, it was probably a temporary problem with my server as now it is working with ignore columns, I sound like such a noob, thank you for responding to my enquiry so fast.