Staking Problem

Hi guys,
I have a problem to stake my Flow token.
Some weeks ago I had already staked some Flow but now when I try to delegate, the wallet flipper open but I can’t push the key “approve” and nothing happen.
I also try to restake the Rewards but doesn’t work, I think the problem is the interaction between onflow and flipper.

It’s only my problem or it’s happen to someone?

How I can stake my flow?!

thanks all

You may go to to stake to a node; or simly use the liquid staking service here: Increment Finance