Hi BitZ owners !
I'm a miner for 6 months now and I've got some trouble with my paper wallet.
I've mined a lot of BtcZ and since February, I'm storing my crypto on a paper wallet by choice. I've seen many good things about this.
But now I would like to move them all from the paper wallet on a exchange just to be sure a transfer will success.
I use BtcZ wallet, I scan the private key, click on 'sweep paper wallet' and i'm seeing my funds found : 8XXXXX BTCZ found on the paper wallet. So, if I'm not wrong, the money is still in my paper wallet and no one stole me.
The issue comes when I click on 'sweep' : at this moment, I've got a kind of 'loading' with written 'sweeping wallet' on the center of the screen but nothing happened. I've wait 10 min and and I've got a error : "could made/found the transaction".
And That's all !

I'm scared because I suppose my money is still correctly in my paper wallet, but I cannot moved it anywhere.

If someone has the solution, I'd love listened to him. Thank everyone.

* Sorry for my english *
Edit : I tried with core wallet and got this message.

An error occurred when sending cash. Error message is :

please ensure that sending parameters are correct