I used this:
<?php echo do_shortcode('[businesshours closed="Today is closed."]Today we work from {{TodayOpen}} to {{TodayClose}}[/businesshours]'); ?>
in the header.php file and it worked fine.
Hope this helps!
SOLVED! If anyone else has a similar problem, try naming your .htaccess file something different, and then login. Not sure why, but it worked for me!!
I should mention that my access log is showing that I logged in, yet the page is still just refreshing.
Unfortunately none of those options worked. Anything else?