davemhui

Check the database user and password in the database from phpMyAdmin in your cpanel file manager of web hosting and in the wp-config.php file. They both must match, else you will get Error Establishing Database Connection

What is the URL of website ?

Yep, use the Jetpack plugin and you can see Enhanced Site Stats on WP.com by linking the accounts.
It is really nice stats , and a good looking interface.

Update your browser and clear browser cache+ cookies from history.
Then use the Publish button .

You just need to match the username and password on wp-config.php and the database.
Is your database showing its memory size ?
Also check your site on sucuri.net to check whether it has some foul code .

Are you getting any errors on the Webmaster Tools of Google . Specifying those errors can be helpful.

There seems to be no problem with your feed.

This may be ocurring because of an incompatible plugin. disable all plugins and then check . Then reactivate them one by one.

In this case, your domain registrar can help. contact them and it can be done.

If you are sure that the username and password are correct on both sides and in the same order, then try repairing the database using phpMyAdmin on your web hosting account.

In the HTML ( Text ) button of your post editor, use nextpage tag wherever you want to start the next page
<!–nextpage–>

Disable all the plugins and then check the URLs of the post.
Hope it works out correct then.

What you can do is check after disabling all the plugins and see if the photo shows up.

You can do it through Redirection Settings of Domain Management from your account with the domain registrar , and this can also be done using Nameservers.

that is in the wp-includes/version.php
You can access your old posts by loading your database on a server or localhost .