Hi @danishhaidri
The :: inidcates that the IP addresses all contain zero’s so something is broken.
It could also be a database issue if the values in that column are actually lost, or something about how the records are read from the database, such as using a PHP version that doesn’t have IPv6 IP address support.
Please ask your hosting provider if they can see any issues causing this as I have outlined above.
You can also send me your Wordfence diagnostics report. Please go to the top of the “Diagnostics” tab on the Wordfence “Tools” page. There will be a “SEND REPORT BY EMAIL” button to send the diagnostics report. Enter wftest [at] wordfence [dot] com as the email and @danishhaidri as the forum username please.
Once you have emailed me the diagnostics report can you reply here to let me know that it has been sent. This is important in the unlikely event that your installation of WordPress is having an issue with sending mail.