Version Information

Forge version: 35.1.28
Botania version: Botania-1.16.4-410

What I expected to happen:

What happened instead:
Lens can not combine

That first lens is a Bounce Lens (反射). You're likely looking for the Warp Lens (传送).

Note also that, if you're trying to use Force Relays (力量传递器), you want to put the Warp Lens second.

^