Please update your site at http://calculators.id1945.com to WordPress 4.0.1.
Updating is easy and only takes a few moments:
http://calculators.id1945.com/wp-admin/update-core.php
Keeping your site updated is important for security. It also makes the internet a safer place for you and your readers.
If you experience any issues or need support, the volunteers in the WordPress.org support forums may be able to help.
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The WordPress Team