Hi, I restored a wallet in Electrum by using the private key but I cant click on Master Public Keys because its greyed out and I dont know why,
How did you make your wallet? IIRC that only happens if you create the wallet from imported addresses.
also I cant sign a transaction with a watching only wallet because theres no send button, please help
If your wallet is a watching only wallet, then your wallet does not contain any private keys. This means that you won't be able to send transactions or sign anything.
How did you create your wallet?