Bitcoin address 3XXXXX - Electrum can not "sign message"

[TolegRus]

Message is telling me: "Cannot sign messages with this type of address."

In other thread I read:
":it looks like you are trying to sign a message with a 2FA wallet.  If that is the case, it is not possible to sign a message directly with your wallet.   The reason is simple, you don't have full control of the private keys associated with the bitcoin address, it is a 2 out of 3 multi signature address. Therefore, you would need all the 3 private keys to sign with this type of bitcoin address.  And this is exactly what the message is telling you: "Cannot sign messages with this type of address."
For your ICO, it seems that you would have to use a bitcoin address that starts with a "1" (not a "3"). "

How can I make addres that starts with 1? I have 3xxxxx address only.

[Abdussamad]

You need to create a standard wallet:

https://bitcoinelectrum.com/creating-an-electrum-wallet/