The Mighty

Yes, as Michael, I suggest you to re-setting the permalinks.
I have similar experience, after I moved my site when I visited any posts on my site it said “Not Found. The page you are looking for no longer exists.” Then I did as Michael said

So, you’d change them twice. Once to set it back to ‘Default’, and second to set it to what you want it to be again.

and my site worked fine again.

Yes, I think its not coming from wordpress.

For now, what is difference between blog and website, maybe just the appearance, so find a nice theme and you will change your blog be site.
There are a lot of theme out there, even the free one has a very good appearance.
Good luck.

You can try 000webhost.com, byethost.com, freehostia.com, x10hosting.com, I think they are decent free hosting.

I’m sorry, it was my false. The “Setting” that I mean is inside your WP offline site.

Check your footer.php (in your theme directory) and do a little edit in that file.

Good luck ??
If your problem is resolved then mark this thread as “Resolved”, so that others who have the same problem could do the same thing as you did. You can find the radio button at the right side of this page.
Thanks & regards.

Go to https://www.google.com/webmaster, login with your google account then you can add your site and after that you can submit your sitemap by pointing your sitemap address in your site, for example https://www.yourdomain.com/sitemap.xml

Try to backup your database via phpMyAdmin, then you can use it when you try to rebuild your site

Yes, my problem is solved.
I’ve found the cause of my problem, yes that’s me, not my plugins or my WP but because I’m fool.
Here’s my story, I’m using Opera (the problem not because of Opera, Opera is perfect) and because my connection is very poor I often use great feature of Opera, that’s Opera Turbo. When I used Turbo feature I often switch ON, switch OFF, ON again, OFF again and I think that’s makes my post is missing or stuck even I edited.
What I do now is I let the Turbo ON or OFF before I login to my site and don’t switch it until I logout.
OK, thanks for help and your time.

Regards.

Thanks for your advice.
Yes, it is look like I have a problematic plugin. I was trying as you say. I will post results later.
Thank you

Try this plugin, Google XML Sitemaps

Do triple check !!
Make sure the host is not “localhost” and your database is exist.

Try use plugin called Memory Bump. Activate this plugin then try to upgrade your WP again. After you activate this plugin, you can deactivate and then delete it. This plugin only need activate once.

Is there anyone actually in WP that we can contact?

I’m not sure.

Try this,
on your Wamp localhost go to Setting -> General and change “WordPress address (URL)” and “Site address (URL)” field into your site URL (www.yourdomain.com) then upload your database file into 000webhost.com via CPanel – phpMyAdmin.
Or you can directly go to your database in 000webhost.com but it will be little confusing.