Does anyone else have issues to stake their BBS? Any advise?

When I select the BBS which are in my metamask (ETH wallet), and push "stake" then my metamask wallet gives following pop-up:

Then when I push "sign" nothing really happens and I am sent back to the BBS staking screen.

It worked the first time when I did it some months ago, and now I don't seem to be able to stake my BBS anymore...

I have 0.0225 ETH in my metamask wallet. That should be enough, no?

I do see a previous transaction called "Approve BBS Spend limit" of which I am not sure how this is related...

Anybody who knows what I am doing wrong or who could give me advise?

K_Bloemen 🌸