We have Confirmed coins inside the wallet and we have a doubt that this may Affect other coins, and block the entire wallet.
Don't worry about this. The unconfirmed transaction can't and won't prevent you from spending your confirmed coins. Otherwise, this would be a serious flaw in bitcoin!
To spend your confirmed coins (utxo), you can either use the coin control feature to select which coins you want to spend or deactivate the option to spend unconfirmed coins.