Rebuilding Search Index

[starme]

Rebuilding Search Index causes errors:
Call to a member function fetch_array() on a non-object (boolean) on line in
#0 /home/xxx/domains/xxx.com/public_html/includes/class_core.php(810): mysqli_fetch_array()
#1 /home/xxx/domains/xxx.com/public_html/includes/class_core.php(504): vB_Database->fetch_array()
#2 /home/xxx/domains/xxx.com/public_html/admincp/misc.php(185): vB_Database->query_first()
#3 {main}

[Lynne]

What version of vB are you running? What version of PHP? And did you try to rebuild it via the admincp browser or via command line? How many posts on your forum?

[starme]

vb4.2.2
PHP 5.6.99-hhvm
via admincp
600k+ posts

[Lynne]

vB4.2.2 is not compatible with PHP5.6. You should either upgrade to 4.2.3 or downgrade your PHP to 5.4.