I’ve had a WordPress database error on my blog. I noticed at first I was getting moderation requests for ‘empty’ comments, none of the fields contained any text. Later, when I logged into my dashboard I received this error:
WordPress database error: [Can’t open file: ‘wp_comments.MYI’ (errno: 144)].
Quick fix for this is to log in to phpMyAdmin, select your WordPress database, check the box next to wp_comments and from the drop-down menu labelled ‘With selected’ select ‘repair table’. Hopefully all should be good again after that 