Are you using some kind of VPN or Tor?
Try without.

DarthCoin

Neither do they, I created another wallet in another device and nothing, the same.

Aeiou

Tried to pay another walletano account and nothing.

I just did another bunch of payments to different destinations. All worked just fine.
But that doesn't mean we should not find out why is not working for you.
Must be something of how you use it or where are you sending.

I am here with the same problem a long time ago

Longtermwizard

bitcoin_beginners

Getting started with Walletano

try any other destination, your own LN wallets, not SN.
I really don't know why is not working for you but is working for me.

@Walletano