jeprie

The problem is fixed. I had nice help from Hostgator support team. They repair the database. Complete instruction is available here: How to repair a broken database.

Thank you for all the help.

I have tried to switched default theme and editing still doesn’t work. I guess the problem is not related to theme.

I have read the explanation on increasing memory. I don’t find warning similar to “Allowed memory size of xxxxxx bytes exhausted”. I’ll try to consult with hostgator support team berfore doing this.

I have deactivated wp-cache plugin. Still, doesn’t fix the problem.

Set your permalink to Custom Structure: /%postname%/

If your post is Contact, you’ll get https://www.yoursite.com/contact

yes. i have same issue with plugin contact form 7 and meebo.