Mining / Staking Issue

Hello everybody,

we started staking a few days ago and from what I see in logs, everything seems OK, but we’re not being able to mine anything, we’re constantly receiving this message:

“Adding 0 unconfirmed transaction(s) to new block”

The address of the node is 3PLJQASFXtiohqbirYwSswjjbYGLfaGDEQy

We have enough leased balance (15K), it was leased before more than 1k blocks, I don’t get it.