Deactivate Plugins Before Doing Any WP Upgrade
No kidding. Next time, I must make sure I deactivate all the plugins before I start the WP upgrade.
A few days ago, I did the one-click upgrade for all of my blogs. A few of my blogs which I used the link cloaking plugin lost all the posts and pages.
Ya, I was so shocked and panicked. Without delay, I looked for help from my web hosting company. Phew, the problem was fixed within minutes!
According to the staff, it must have been one of the plugins that caused the havoc. Well, he was right!