I have 170 light seeds. Elika keeps saying "we must return to the temple, I can have one more power".But when I return to the temple and step on a power plate and hit the Elika button, nothing happens. The activation never happens. Can somebody help???

must've been an unfortunate glitch mate...
nothing else i can think of. did u try tapping the elika button?

Hey. You need to go to any of the three colored plated and repeatedly press the triangle key. And the other levels should open up.