Hi all,
Seems like you have a php version problem. Please make sure you use the right version of PHP.
To make sure you have a php 5 version just create a test file: eg: test.php and include
<?php phpinfo();?>
After checking a bit on Google it seems like Bluehost have PHP4 and PHP5 versions hosting and that it is possible to switch between them somehow.
The error you experience is typical of old php version.
Also check here, this guy had same problem on Bluehost
https://girlit.net/question/construct-issue-for-php4-and-php5-maybe-an-another-reason
Bluehost said it was 5 but it was actually still 4….
I am happy to hear your feedback,
Julien, iA
FYI: theme works with 3.1.3 of WP