It means you connected to IP addresses that have been considered compromised or flagged by malwarebytes.
The IP address might be from an electrum server experiencing issues or compromised
Or could as well be an IP address of a third party Electrum server that has been flagged.
On the domain, there's a likelihood it might be a phishing server since it was flagged.
Check if your electrum wallet is updated and make sure you downloaded electrum from the official site.
It could be your device that's been compromised check for malware (experienced such before).
You can move to this board
https://bitcointalk.org/index.php?board=98.0 for better and quicker response.
To move check the bottom left section and you would find move and lock.
Click on Move.