Hi almac21
You have a couple of options:
1. Make some more base (doesn't have to be the full amount), only don't use any ginger at all. Then mix this in with the gingery base.
2. Use the base you've made and then don't use any ginger in making the final curry (this usually comes in the form of the ginger/garlic paste or similar).
Personally though I would make at least one curry with the base as is and see how it turns out first. It's unlikely that the base is so gingery that it will totally ruin the curry.