Update Electrum to the latest version on ELECTRUM.ORG (only legit website!).
Versions older than 3.3 dont synchronize anymore and have several issues (including a phishing attack that shows fake update messages and lead to fake websites). Optionally (but highly recommended) verify the file signature.
Remember to ALWAYS only use ELECTRUM.ORG regardless of the message you see.
Great...I'll try that.
Thanks everyone for all your help.....
Make sure to backup your wallet first(if you don't have a backup seed phrase or private key) before you upgrade your wallet to the latest version Electrum_3.3.4 so that if you experience some technical issue or error from upgrading your old version electrum to a new version you can fully uninstall the Electrum wallet and reinstall the latest version and import the backup seed phrase/private keys.