Data should be fixed on TVDb first. You can do so by filing a report (with sources/information to back up your claims) on their forums. After which you can report it at the Trakt support site.
I can take a (long) while for a mod to fix stuff though… especially if it’s more obscure. I reported an issue almost 2 months ago and there’s no reply at all. Not even a “looking into it, don’t worry!” or anything. But hey, it’s Chinese. No one cares I suppose