I worked guys!It took me some time copy/paste all the "adresses" carefully - but it worked!

Wait! You said "
addresses".
Have you successfully created an [imported] Electrum wallet, not an [imported, watching-only]?
Check the wallet's name in Electrum's title bar.
Or do you mean you've copy/paste all the "
private keys"?
If yes, then it's all good.