Yes, exactly, it's not easy to see the light text on the bright green background. I've gone to view your coding and I think your designer has got the color fixed in the css file. It wouldn't take long for your designer to edit just one css file, really.

If you're thinking of changing to another color palette, you'll need time to do some mix and match, but meanwhile, to serve your visitors well, your best bet is to change the white text into black text. This should help somehow for the time being.