if you are sure the address you provided to LBC belongs to your wallet and you know the wallet seed then there is nothing to worry about. Even if Electrum is not connected, you will continue to receive payment but you won't get notifications about incoming transactions and won't be able to transfer your funds.

You can use a blockchain explorer such as btc.com to check if the transaction has been confirmed or not then try to connect to other servers as suggested above to fix the connection problem.